diff --git a/backend/app/api/versions.py b/backend/app/api/versions.py
index 9686e2a0..e134c149 100644
--- a/backend/app/api/versions.py
+++ b/backend/app/api/versions.py
@@ -1,4 +1,19 @@
-"""战略地图版本管理 API"""
+"""战略地图版本管理 API（2026-09-08 完整实现）
+
+功能闭环（任总报告\"版本连接点击打不开\"→ 方案B）:
+- GET    /{map_id}/versions             版本列表（含维度/目标/KPI/连线摘要 + is_current）
+- GET    /{map_id}/versions/{vid}       单版本详情（dimensions/canvas_data 全量，供\"查看快照画布\"）
+- POST   /{map_id}/versions/snapshot    手动创建快照（保留，历史兼容）
+- POST   /{map_id}/versions/{vid}/rollback  回滚到指定版本 —— 回滚前自动备份当前内容为新版本快照，防覆盖丢数据
+- PUT    /{map_id}/versions/{vid}       更新版本备注 comment
+
+安全:
+- 全部端点按 map_id + entity_id 隔离（地图归属 404；版本行再校验 entity_id，防跨账套回滚）
+- 回滚 = 先备份后覆盖；备份版本号由当前地图 version 派生（vX.Y → vX.(Y+1)），撞号自动 +1
+- 不改 _auto_snapshot / 发布逻辑（maps.py 自动快照保持原样）
+"""
+import json
+import re
 from fastapi import APIRouter, Depends, HTTPException
 from sqlalchemy.orm import Session
 from app.database import get_db
@@ -11,43 +26,138 @@ router = APIRouter(prefix="/api/cma/maps", tags=["战略地图版本"],
 )
 
 
+def _get_map(db: Session, map_id: int, entity_id: int) -> StrategicMap:
+    m = db.query(StrategicMap).filter(
+        StrategicMap.id == map_id, StrategicMap.entity_id == entity_id
+    ).first()
+    if not m:
+        raise HTTPException(404, "战略地图不存在")
+    return m
+
+
+def _get_version(db: Session, map_id: int, vid: int, entity_id: int) -> StrategicMapVersion:
+    v = db.query(StrategicMapVersion).filter(
+        StrategicMapVersion.id == vid,
+        StrategicMapVersion.map_id == map_id,
+        StrategicMapVersion.entity_id == entity_id,
+    ).first()
+    if not v:
+        raise HTTPException(404, "版本不存在")
+    return v
+
+
+def _parse_json(raw, default):
+    if raw is None:
+        return default
+    if isinstance(raw, (dict, list)):
+        return raw
+    try:
+        return json.loads(raw)
+    except Exception:
+        return default
+
+
+def _next_minor_version(s: str) -> str:
+    """把 'v1.0' → 'v1.1'；解析失败返回 None"""
+    m = re.search(r"v(\d+)\.(\d+)", s or "")
+    if m:
+        return f"v{m.group(1)}.{int(m.group(2)) + 1}"
+    return None
+
+
+def _summary_dict(v: StrategicMapVersion, m: StrategicMap = None) -> dict:
+    dims = _parse_json(v.dimensions, [])
+    canvas = _parse_json(v.canvas_data, {"connections": []})
+    codes = set()
+    objective_count = 0
+    for dim in dims:
+        for obj in dim.get("objectives", []):
+            objective_count += 1
+            for c in (obj.get("kpis") or []):
+                if c:
+                    codes.add(str(c))
+            for kr in (obj.get("krs") or []):
+                if isinstance(kr, dict) and kr.get("kpi_code"):
+                    codes.add(str(kr["kpi_code"]))
+    conns = canvas.get("connections", []) if isinstance(canvas, dict) else []
+    return {
+        "id": v.id,
+        "map_id": v.map_id,
+        "entity_id": v.entity_id,
+        "version": v.version,
+        "comment": v.comment,
+        "created_by": v.created_by,
+        "created_at": v.created_at.isoformat() if v.created_at else None,
+        "dimension_count": len(dims),
+        "objective_count": objective_count,
+        "kpi_count": len(codes),
+        "connection_count": len(conns),
+        "is_current": bool(m and m.version == v.version),
+    }
+
+
+def _full_dict(v: StrategicMapVersion, m: StrategicMap = None) -> dict:
+    d = {c.name: getattr(v, c.name) for c in v.__table__.columns}
+    if d.get("created_at") is not None:
+        d["created_at"] = d["created_at"].isoformat()
+    d.update(_summary_dict(v, m))
+    return d
+
+
 @router.get("/{map_id}/versions")
 def list_versions(map_id: int, db: Session = Depends(get_db), entity_id: int = Depends(get_entity_id)):
-    """查看版本历史（账套隔离, OpenCode审查#9）"""
+    """查看版本历史（账套隔离；地图归属校验 404）"""
+    m = _get_map(db, map_id, entity_id)
     versions = db.query(StrategicMapVersion).filter(
         StrategicMapVersion.map_id == map_id,
         StrategicMapVersion.entity_id == entity_id,
-    ).order_by(StrategicMapVersion.id.desc()).all()
-    return {"data": [v_to_dict(v) for v in versions]}
+    ).order_by(StrategicMapVersion.created_at.desc(), StrategicMapVersion.id.desc()).all()
+    return {"data": [_summary_dict(v, m) for v in versions]}
+
+
+@router.get("/{map_id}/versions/{vid}")
+def get_version(map_id: int, vid: int, db: Session = Depends(get_db), entity_id: int = Depends(get_entity_id)):
+    """单版本详情：dimensions/canvas_data 全量（供\"查看该版本画布\"）"""
+    m = _get_map(db, map_id, entity_id)
+    v = _get_version(db, map_id, vid, entity_id)
+    return _full_dict(v, m)
+
+
+@router.put("/{map_id}/versions/{vid}")
+def update_version_comment(map_id: int, vid: int, data: dict, db: Session = Depends(get_db), entity_id: int = Depends(get_entity_id)):
+    """更新版本备注 comment"""
+    _get_map(db, map_id, entity_id)
+    if "comment" not in data:
+        raise HTTPException(400, "缺少 comment 字段")
+    v = _get_version(db, map_id, vid, entity_id)
+    v.comment = data.get("comment")
+    db.commit()
+    db.refresh(v)
+    return _summary_dict(v, _get_map(db, map_id, entity_id))
+
+
+def _next_snapshot_version(db: Session, map_id: int) -> str:
+    """该地图下一个快照版本号：最新快照行 minor+1；无快照 → v1.0（与 _auto_snapshot 语义一致）"""
+    latest = db.query(StrategicMapVersion).filter(
+        StrategicMapVersion.map_id == map_id
+    ).order_by(StrategicMapVersion.id.desc()).first()
+    if latest:
+        nxt = _next_minor_version(latest.version)
+        if nxt:
+            return nxt
+    return "v1.0"
 
 
 @router.post("/{map_id}/versions/snapshot")
 def create_snapshot(map_id: int, data: dict, db: Session = Depends(get_db), entity_id: int = Depends(get_entity_id)):
     """手动创建快照（账套隔离）"""
-    m = db.query(StrategicMap).filter(StrategicMap.id == map_id, StrategicMap.entity_id == entity_id).first()
-    if not m:
-        raise HTTPException(404, "战略地图不存在")
+    m = _get_map(db, map_id, entity_id)
 
-    import json
-    dims = m.dimensions
-    canvas = m.canvas_data
-    if isinstance(dims, str):
-        dims = json.loads(dims)
-    if isinstance(canvas, str):
-        canvas = json.loads(canvas)
+    dims = _parse_json(m.dimensions, [])
+    canvas = _parse_json(m.canvas_data, {"connections": []})
 
-    # 自动版本号
-    existing = db.query(StrategicMapVersion).filter(
-        StrategicMapVersion.map_id == map_id
-    ).order_by(StrategicMapVersion.id.desc()).first()
-    if existing:
-        import re
-        match = re.search(r"v(\d+)\.(\d+)", existing.version)
-        major = int(match.group(1)) if match else 1
-        minor = int(match.group(2)) + 1 if match else 0
-        new_ver = f"v{major}.{minor}"
-    else:
-        new_ver = "v1.0"
+    # 自动版本号: 与 _auto_snapshot 一致 —— 最新快照行 minor+1；无快照 → v1.0
+    new_ver = _next_snapshot_version(db, map_id)
 
     snapshot = StrategicMapVersion(
         map_id=map_id,
@@ -60,30 +170,67 @@ def create_snapshot(map_id: int, data: dict, db: Session = Depends(get_db), enti
     db.add(snapshot)
     db.commit()
     db.refresh(snapshot)
-    return v_to_dict(snapshot)
+    return _full_dict(snapshot, m)
 
 
-@router.post("/{map_id}/versions/{ver_id}/rollback")
-def rollback_version(map_id: int, ver_id: int, db: Session = Depends(get_db), entity_id: int = Depends(get_entity_id)):
-    """回滚到指定版本"""
-    m = db.query(StrategicMap).filter(StrategicMap.id == map_id, StrategicMap.entity_id == entity_id).first()
-    if not m:
-        raise HTTPException(404, "战略地图不存在")
+@router.post("/{map_id}/versions/{vid}/rollback")
+def rollback_version(map_id: int, vid: int, db: Session = Depends(get_db), entity_id: int = Depends(get_entity_id)):
+    """回滚到指定版本。
 
-    v = db.query(StrategicMapVersion).filter(
-        StrategicMapVersion.id == ver_id,
+    安全设计（2026-09-08 完整实现，修复旧版无备份覆盖事故）:
+    1. 回滚前把地图【当前内容】备份为新版本快照（版本号由当前 map.version 派生 vX.(Y+1)，撞号自动 +1）
+       —— 任何情况下不因回滚丢失当前画布内容
+    2. 用目标版本 dimensions/canvas_data 覆盖 strategic_maps 当前行，version 设为该版本号
+    3. 地图与版本行双重 entity 校验（跨账套一律 404）
+    """
+    m = _get_map(db, map_id, entity_id)
+    v = _get_version(db, map_id, vid, entity_id)
+
+    # 1) 先备份当前内容 → 新版本快照
+    cur_dims = _parse_json(m.dimensions, [])
+    cur_canvas = _parse_json(m.canvas_data, {"connections": []})
+    backup_ver = _next_snapshot_version(db, map_id)
+    # 防撞号: 极端场景最新快照版本号不可解析回落 v1.0 时循环 +1（正常递增天然唯一）
+    exists = db.query(StrategicMapVersion).filter(
         StrategicMapVersion.map_id == map_id,
+        StrategicMapVersion.version == backup_ver,
     ).first()
-    if not v:
-        raise HTTPException(404, "版本不存在")
+    while exists:
+        nxt = _next_minor_version(backup_ver)
+        backup_ver = nxt if nxt else backup_ver + ".1"
+        exists = db.query(StrategicMapVersion).filter(
+            StrategicMapVersion.map_id == map_id,
+            StrategicMapVersion.version == backup_ver,
+        ).first()
 
-    m.dimensions = v.dimensions
-    m.canvas_data = v.canvas_data
-    m.version = f"rollback-{v.version}"
-    m.status = "draft"
+    backup = StrategicMapVersion(
+        map_id=map_id,
+        entity_id=entity_id,
+        version=backup_ver,
+        dimensions=cur_dims,
+        canvas_data=cur_canvas,
+        comment="回滚前自动备份",
+    )
+    db.add(backup)
+
+    # 2) 覆盖当前行内容 + 版本号
+    m.dimensions = _parse_json(v.dimensions, [])
+    m.canvas_data = _parse_json(v.canvas_data, {"connections": []})
+    m.version = v.version
     db.commit()
-    return {"message": f"已回滚到 {v.version}", "version": m.version}
 
+    # 3) 同步目标表（与 update_map 保存路径一致，保证回顾会/KR 取数一致）
+    try:
+        from app.api.maps import _sync_map_objectives, _sync_objectives_krs
+        _sync_map_objectives(m, db)
+        _sync_objectives_krs(m, db)
+    except Exception as e:
+        # 同步失败不回滚已完成的版本覆盖（主数据已安全）
+        import logging
+        logging.getLogger("maps_versions").warning("rollback 后目标表同步失败: %s", e)
 
-def v_to_dict(v):
-    return {c.name: getattr(v, c.name) for c in v.__table__.columns}
+    return {
+        "message": f"已回滚到 {v.version}（当前内容已自动备份为 {backup_ver}）",
+        "version": m.version,
+        "backup_version": backup_ver,
+    }
diff --git a/backend/tests/test_map_versions.py b/backend/tests/test_map_versions.py
new file mode 100644
index 00000000..44743df3
--- /dev/null
+++ b/backend/tests/test_map_versions.py
@@ -0,0 +1,218 @@
+"""
+战略地图版本管理完整实现测试（project-20260908-map-versions-page）
+覆盖: 列表摘要/详情全量/回滚自动备份/备注编辑/跨entity 404/不存在404
+"""
+import pytest
+from fastapi.testclient import TestClient
+from sqlalchemy.orm import Session
+from app.models import Entity, User, UserEntity, StrategicMap, StrategicMapVersion
+from tests.conftest import create_test_user, get_token_for_user, auth_header
+
+
+def _create_second_entity(db: Session, user: User) -> int:
+    db.add(Entity(id=2, name="第二企业", short_name="企业2", status="active"))
+    db.add(UserEntity(user_id=user.id, entity_id=2, granted_by=1))
+    db.commit()
+    return 2
+
+
+def _token_for_entity(client: TestClient, entity_id: int) -> str:
+    resp = client.post("/api/cma/auth/login", json={
+        "username": "testadmin", "password": "admin123", "entity_id": entity_id,
+    })
+    assert resp.status_code == 200
+    data = resp.json()
+    return data.get("token") or data.get("access_token")
+
+
+def _create_published_map(client: TestClient, token: str, title: str) -> int:
+    """建模板地图 → 发布 → 返回 map_id（自动产生 v1.0 快照）"""
+    create_resp = client.post(
+        "/api/cma/maps/create-with-template",
+        headers=auth_header(token),
+        json={"title": title},
+    )
+    assert create_resp.status_code == 200
+    map_id = create_resp.json()["id"]
+    pub_resp = client.put(
+        f"/api/cma/maps/{map_id}", headers=auth_header(token),
+        json={"status": "published"},
+    )
+    assert pub_resp.status_code == 200
+    return map_id
+
+
+class TestMapVersions:
+    """战略地图版本 endpoints"""
+
+    def test_list_versions_empty_then_publish_has_summary(self, client, db):
+        create_test_user(db)
+        token = get_token_for_user(client)
+
+        # 未发布空列表
+        m = client.post("/api/cma/maps/create-with-template", headers=auth_header(token), json={"title": "版本测试A"})
+        map_id = m.json()["id"]
+        empty = client.get(f"/api/cma/maps/{map_id}/versions", headers=auth_header(token))
+        assert empty.status_code == 200
+        assert empty.json()["data"] == []
+
+        # 发布后 v1.0 快照（列表带摘要字段）
+        client.put(f"/api/cma/maps/{map_id}", headers=auth_header(token), json={"status": "published"})
+        ver = client.get(f"/api/cma/maps/{map_id}/versions", headers=auth_header(token))
+        assert ver.status_code == 200
+        rows = ver.json()["data"]
+        assert len(rows) == 1
+        r = rows[0]
+        assert r["version"] == "v1.0"
+        assert r["is_current"] is True
+        assert r["dimension_count"] == 4
+        assert r["objective_count"] > 0
+        assert isinstance(r["kpi_count"], int)
+        assert r["comment"] == "发布 v1.0"
+
+    def test_get_version_detail_has_full_content(self, client, db):
+        create_test_user(db)
+        token = get_token_for_user(client)
+        map_id = _create_published_map(client, token, "版本详情B")
+        versions = client.get(f"/api/cma/maps/{map_id}/versions", headers=auth_header(token)).json()["data"]
+        vid = versions[0]["id"]
+
+        detail = client.get(f"/api/cma/maps/{map_id}/versions/{vid}", headers=auth_header(token))
+        assert detail.status_code == 200
+        d = detail.json()
+        assert isinstance(d["dimensions"], list) and len(d["dimensions"]) == 4
+        assert isinstance(d["canvas_data"], dict)
+        assert d["version"] == "v1.0"
+
+    def test_rollback_backs_up_current_and_restores_content(self, client, db):
+        """核心安全: 回滚前自动备份当前内容为新版本; 回滚后内容=目标版本"""
+        create_test_user(db)
+        token = get_token_for_user(client)
+        map_id = _create_published_map(client, token, "回滚安全C")
+
+        # 发布后快照 v1.0（内容=模板初始）
+        versions = client.get(f"/api/cma/maps/{map_id}/versions", headers=auth_header(token)).json()["data"]
+        v1_id = versions[0]["id"]
+        v1_content = client.get(f"/api/cma/maps/{map_id}/versions/{v1_id}", headers=auth_header(token)).json()
+
+        # 修改地图内容为全新结构（published 状态下保存，不触发自动快照）
+        new_dims = [{"key": "finance", "name": "财务层", "icon": "💰", "color": "#F56C6C",
+                     "objectives": [{"name": "回滚前最新目标", "icon": "target",
+                                     "kpis": ["F_REVENUE"], "krs": [
+                                         {"name": "KR新", "kpi_code": "F_REVENUE", "weight": 100, "target_value": "100"}
+                                     ]}]}]
+        upd = client.put(f"/api/cma/maps/{map_id}", headers=auth_header(token),
+                         json={"dimensions": new_dims, "canvas_data": {"connections": [{"from": "a", "to": "b"}]}})
+        assert upd.status_code == 200
+
+        # 回滚到 v1.0 → 应自动备份当前(v1.0→v1.1) 且内容还原为 v1.0
+        rb = client.post(f"/api/cma/maps/{map_id}/versions/{v1_id}/rollback", headers=auth_header(token))
+        assert rb.status_code == 200
+        data = rb.json()
+        assert data["version"] == "v1.0"
+        assert data["backup_version"] == "v1.1"
+
+        # 列表: 备份(v1.1 最新) + v1.0
+        after = client.get(f"/api/cma/maps/{map_id}/versions", headers=auth_header(token)).json()["data"]
+        assert len(after) == 2
+        assert {x["version"] for x in after} == {"v1.0", "v1.1"}
+        backup = next(x for x in after if x["version"] == "v1.1")
+        assert backup["comment"] == "回滚前自动备份"
+
+        # 当前地图内容 == v1.0 快照内容（语义还原；列表读路径会经 map_objectives 合并补 description/icon 默认键，按业务字段归一化比较）
+        maps = client.get("/api/cma/maps", headers=auth_header(token)).json()["data"]
+        cur = next(x for x in maps if x["id"] == map_id)
+        assert cur["version"] == "v1.0"
+
+        def norm(dims):
+            return [
+                {
+                    "key": d.get("key"),
+                    "objectives": [
+                        {k: o.get(k) for k in ("name", "kpis", "krs")}
+                        for o in d.get("objectives", [])
+                    ],
+                }
+                for d in dims
+            ]
+        assert norm(cur["dimensions"]) == norm(v1_content["dimensions"])
+        assert cur["canvas_data"] == v1_content["canvas_data"]
+
+    def test_rollback_again_uses_next_free_backup_version(self, client, db):
+        """连续两次回滚同一目标: 备份版本号不撞号（v1.1 → v1.2）"""
+        create_test_user(db)
+        token = get_token_for_user(client)
+        map_id = _create_published_map(client, token, "回滚两次D")
+        versions = client.get(f"/api/cma/maps/{map_id}/versions", headers=auth_header(token)).json()["data"]
+        v1_id = versions[0]["id"]
+        client.put(f"/api/cma/maps/{map_id}", headers=auth_header(token),
+                   json={"dimensions": [{"key": "finance", "name": "财务层", "icon": "💰", "color": "#F56C6C",
+                                         "objectives": []}]})
+        rb1 = client.post(f"/api/cma/maps/{map_id}/versions/{v1_id}/rollback", headers=auth_header(token)).json()
+        assert rb1["backup_version"] == "v1.1"
+        # 再次改内容再回滚 → 备份 v1.2（不撞 v1.1）
+        client.put(f"/api/cma/maps/{map_id}", headers=auth_header(token),
+                   json={"dimensions": [{"key": "customer", "name": "客户层", "icon": "👥", "color": "#409EFF",
+                                         "objectives": []}]})
+        rb2 = client.post(f"/api/cma/maps/{map_id}/versions/{v1_id}/rollback", headers=auth_header(token)).json()
+        assert rb2["backup_version"] == "v1.2"
+
+    def test_update_comment(self, client, db):
+        create_test_user(db)
+        token = get_token_for_user(client)
+        map_id = _create_published_map(client, token, "备注编辑E")
+        versions = client.get(f"/api/cma/maps/{map_id}/versions", headers=auth_header(token)).json()["data"]
+        vid = versions[0]["id"]
+
+        resp = client.put(f"/api/cma/maps/{map_id}/versions/{vid}", headers=auth_header(token),
+                          json={"comment": "2026H2 定稿版"})
+        assert resp.status_code == 200
+        assert resp.json()["comment"] == "2026H2 定稿版"
+
+        rows = client.get(f"/api/cma/maps/{map_id}/versions", headers=auth_header(token)).json()["data"]
+        assert rows[0]["comment"] == "2026H2 定稿版"
+
+    def test_update_comment_requires_field(self, client, db):
+        create_test_user(db)
+        token = get_token_for_user(client)
+        map_id = _create_published_map(client, token, "备注必填F")
+        versions = client.get(f"/api/cma/maps/{map_id}/versions", headers=auth_header(token)).json()["data"]
+        vid = versions[0]["id"]
+        resp = client.put(f"/api/cma/maps/{map_id}/versions/{vid}", headers=auth_header(token), json={})
+        assert resp.status_code == 400
+
+    def test_cross_entity_all_versions_endpoints_404(self, client, db):
+        """跨账套: 列表/详情/备注/回滚 全部 404（地图归属+版本 entity 双重隔离）"""
+        create_test_user(db)
+        token1 = get_token_for_user(client)
+        map_id = _create_published_map(client, token1, "隔离G")
+
+        user = db.query(User).filter(User.username == "testadmin").first()
+        _create_second_entity(db, user)
+        token2 = _token_for_entity(client, 2)
+
+        versions = client.get(f"/api/cma/maps/{map_id}/versions", headers=auth_header(token1)).json()["data"]
+        vid = versions[0]["id"]
+
+        assert client.get(f"/api/cma/maps/{map_id}/versions", headers=auth_header(token2)).status_code == 404
+        assert client.get(f"/api/cma/maps/{map_id}/versions/{vid}", headers=auth_header(token2)).status_code == 404
+        assert client.put(f"/api/cma/maps/{map_id}/versions/{vid}", headers=auth_header(token2),
+                          json={"comment": "越权"}).status_code == 404
+        assert client.post(f"/api/cma/maps/{map_id}/versions/{vid}/rollback", headers=auth_header(token2)).status_code == 404
+
+    def test_rollback_unknown_version_404(self, client, db):
+        create_test_user(db)
+        token = get_token_for_user(client)
+        map_id = _create_published_map(client, token, "不存在H")
+        resp = client.post(f"/api/cma/maps/{map_id}/versions/99999/rollback", headers=auth_header(token))
+        assert resp.status_code == 404
+
+    def test_rollback_other_maps_version_404(self, client, db):
+        """vid 属于另一张地图 → 404（map_id + vid 双条件匹配）"""
+        create_test_user(db)
+        token = get_token_for_user(client)
+        map_a = _create_published_map(client, token, "地图A-I")
+        map_b = _create_published_map(client, token, "地图B-I")
+        va = client.get(f"/api/cma/maps/{map_a}/versions", headers=auth_header(token)).json()["data"][0]
+        resp = client.post(f"/api/cma/maps/{map_b}/versions/{va['id']}/rollback", headers=auth_header(token))
+        assert resp.status_code == 404
diff --git a/frontend/src/api/index.ts b/frontend/src/api/index.ts
index 5fe189d3..76091cc5 100644
--- a/frontend/src/api/index.ts
+++ b/frontend/src/api/index.ts
@@ -69,6 +69,12 @@ export const mapApi = {
   delete: (id: number) => api.delete(`/maps/${id}`),
   batchDelete: (ids: number[]) => api.post('/maps/batch-delete', { ids }),
   createWithTemplate: (data: any) => api.post('/maps/create-with-template', data),
+  // 战略地图版本管理（2026-09-08 project-20260908-map-versions-page）
+  versions: (mapId: number) => api.get(`/maps/${mapId}/versions`),
+  versionDetail: (mapId: number, vid: number) => api.get(`/maps/${mapId}/versions/${vid}`),
+  versionRollback: (mapId: number, vid: number) => api.post(`/maps/${mapId}/versions/${vid}/rollback`),
+  versionUpdateComment: (mapId: number, vid: number, comment: string) => api.put(`/maps/${mapId}/versions/${vid}`, { comment }),
+  versionSnapshot: (mapId: number, comment?: string) => api.post(`/maps/${mapId}/versions/snapshot`, comment ? { comment } : {}),
 }
 
 // 复盘记录持久化（大PDCA Act闭环 2026-08-27）
diff --git a/frontend/src/components/map-canvas/MapCanvasDialogs.vue b/frontend/src/components/map-canvas/MapCanvasDialogs.vue
index 3cfdb6f0..a740834c 100644
--- a/frontend/src/components/map-canvas/MapCanvasDialogs.vue
+++ b/frontend/src/components/map-canvas/MapCanvasDialogs.vue
@@ -153,15 +153,20 @@
   <!-- ==========================================================
     版本历史弹窗（不变）
   ========================================================== -->
-  <MyDialog :model-value="showVersions" @update:model-value="$emit('update:showVersions', $event)" title="版本历史" :width="620">
+  <MyDialog :model-value="showVersions" @update:model-value="$emit('update:showVersions', $event)" title="版本历史" :width="640">
     <div style="max-height:400px;overflow-y:auto;">
       <table class="mc-table" v-if="versions.length > 0">
-        <thead><tr><th>说明</th><th>创建时间</th><th>操作</th></tr></thead>
+        <thead><tr><th>版本</th><th>说明</th><th>摘要</th><th>创建时间</th><th>操作</th></tr></thead>
         <tbody>
           <tr v-for="v in versions" :key="v.id">
+            <td>
+              <span style="font-weight:600;color:#409eff;">{{ v.version }}</span>
+              <el-tag v-if="v.is_current" size="small" type="success" style="margin-left:4px;">当前</el-tag>
+            </td>
             <td>{{ v.comment || '-' }}</td>
+            <td style="color:#909399;font-size:12px;">{{ v.dimension_count ?? 0 }}维 · {{ v.objective_count ?? 0 }}目标 · {{ v.kpi_count ?? 0 }}KPI</td>
             <td>{{ v.created_at }}</td>
-            <td><el-button size="small" type="warning" @click="$emit('rollback-version', v.id)">回滚</el-button></td>
+            <td><el-button size="small" type="warning" :disabled="v.is_current" @click="$emit('rollback-version', v.id)">回滚</el-button></td>
           </tr>
         </tbody>
       </table>
diff --git a/frontend/src/router/index.ts b/frontend/src/router/index.ts
index c2ecfee4..6a25a441 100644
--- a/frontend/src/router/index.ts
+++ b/frontend/src/router/index.ts
@@ -12,6 +12,7 @@ const routes = [
       { path: 'kpis', name: 'KPIs', component: () => import('@/views/KPIList.vue'), meta: { title: 'KPI字典', roles: ['ceo', 'finance', 'business', 'it'], zone: 'B', editable: true } },
       { path: 'kpis/:id', name: 'KPIDetail', component: () => import('@/views/KPIDetail.vue'), meta: { title: 'KPI详情', roles: ['ceo', 'finance', 'business', 'it'], zone: 'B', editable: true, botSource: true } },
       { path: 'maps', name: 'Maps', component: () => import('@/views/MapList.vue'), meta: { title: '战略地图', roles: ['ceo', 'finance'], zone: 'B', editable: true } },
+      { path: 'maps/versions/:id', name: 'MapVersions', component: () => import('@/views/MapVersions.vue'), meta: { title: '战略地图版本', roles: ['ceo', 'finance'], zone: 'B', editable: true } },
       { path: 'customer', name: 'CustomerDimension', component: () => import('@/views/CustomerDashboard.vue'), meta: { title: '客户维度', roles: ['ceo', 'finance', 'business', 'it'], zone: 'A' } },
       { path: 'learning-dashboard', name: 'LearningDashboard', component: () => import('@/views/LearningDashboard.vue'), meta: { title: '学习成长看板', roles: ['ceo', 'finance', 'it'], zone: 'A' } },
       { path: 'maps-review', name: 'MapReviewList', component: () => import('@/views/MapReview.vue'), meta: { title: '战略回顾会', roles: ['ceo', 'finance'], zone: 'B' } },
diff --git a/frontend/src/views/MapVersions.vue b/frontend/src/views/MapVersions.vue
new file mode 100644
index 00000000..f9b1ab28
--- /dev/null
+++ b/frontend/src/views/MapVersions.vue
@@ -0,0 +1,203 @@
+<template>
+  <div class="mv-wrap">
+    <div class="mv-header">
+      <div class="mv-title-row">
+        <el-button size="small" @click="goBack">← 返回地图列表</el-button>
+        <h3 style="margin:0 0 0 12px; display:inline-flex; align-items:center;">
+          版本管理：{{ mapTitle }}
+          <el-tag v-if="mapInfo" size="small" style="margin-left:10px;" :type="mapInfo.status === 'published' ? 'success' : 'info'">
+            {{ mapInfo.status === 'published' ? '已发布' : '草稿' }}
+          </el-tag>
+          <el-tag v-if="mapInfo" size="small" type="warning" style="margin-left:6px;">当前 {{ mapInfo.version }}</el-tag>
+        </h3>
+        <div style="flex:1"></div>
+        <el-button v-if="mapId" size="small" type="primary" plain @click="goCanvas">打开画布</el-button>
+        <el-button v-if="mapId" size="small" @click="load">刷新</el-button>
+      </div>
+      <div v-if="loading" class="mv-empty">版本加载中...</div>
+      <el-table v-else :data="versions" style="width:100%" :empty-text="'暂无版本记录 —— 发布地图后自动生成快照'">
+        <el-table-column prop="version" label="版本号" width="120">
+          <template #default="{ row }">
+            <span :class="{ 'mv-cur-ver': row.is_current }">{{ row.version }}</span>
+            <el-tag v-if="row.is_current" size="small" type="success" style="margin-left:6px;">当前</el-tag>
+          </template>
+        </el-table-column>
+        <el-table-column prop="comment" label="备注" min-width="180">
+          <template #default="{ row }">{{ row.comment || '—' }}</template>
+        </el-table-column>
+        <el-table-column label="内容摘要" width="200">
+          <template #default="{ row }">
+            <span class="mv-dim">{{ row.dimension_count ?? 0 }}维度</span>
+            <span class="mv-sep">·</span>
+            <span class="mv-dim">{{ row.objective_count ?? 0 }}目标</span>
+            <span class="mv-sep">·</span>
+            <span class="mv-dim">{{ row.kpi_count ?? 0 }}KPI</span>
+            <span class="mv-sep">·</span>
+            <span class="mv-dim">{{ row.connection_count ?? 0 }}连线</span>
+          </template>
+        </el-table-column>
+        <el-table-column prop="created_at" label="创建时间" width="180" />
+        <el-table-column label="操作" width="280">
+          <template #default="{ row }">
+            <el-button size="small" @click="viewDetail(row)">查看</el-button>
+            <el-button size="small" @click="editComment(row)">备注</el-button>
+            <el-button size="small" type="warning" :disabled="row.is_current" @click="rollback(row)">回滚</el-button>
+          </template>
+        </el-table-column>
+      </el-table>
+    </div>
+
+    <!-- 查看版本详情：只读展示该版本画布快照的维度树 + 连线 -->
+    <MyDialog v-model="showDetail" title="版本快照详情" :width="720">
+      <div v-if="detail" class="mv-detail">
+        <div class="mv-detail-meta">
+          <el-tag size="small" type="warning">{{ detail.version }}</el-tag>
+          <span style="margin-left:8px;color:#999;font-size:13px;">{{ detail.comment || '无备注' }} · {{ detail.created_at }}</span>
+        </div>
+        <el-collapse v-model="openDims">
+          <el-collapse-item v-for="dim in detail.dimensions || []" :key="dim.key || dim.name" :name="dim.key || dim.name">
+            <template #title>
+              <span class="mv-dim-title">{{ dim.icon || '🎯' }} {{ dim.name || dim.key }}（{{ (dim.objectives || []).length }}目标）</span>
+            </template>
+            <div v-for="obj in dim.objectives || []" :key="obj.name" class="mv-obj">
+              <div class="mv-obj-name">{{ obj.icon || '▪' }} {{ obj.name }}</div>
+              <div v-if="(obj.kpis || []).length" class="mv-obj-kpis">KPI：{{ (obj.kpis || []).join('、') }}</div>
+            </div>
+          </el-collapse-item>
+        </el-collapse>
+        <div class="mv-conn-title">画布连线（{{ (detail.canvas_data?.connections || []).length }} 条）</div>
+        <div v-if="(detail.canvas_data?.connections || []).length" class="mv-conns">
+          <el-tag v-for="(c, i) in detail.canvas_data.connections" :key="i" size="small" style="margin:0 6px 6px 0;">
+            {{ c.from }} → {{ c.to }}
+          </el-tag>
+        </div>
+        <div v-else style="color:#999;font-size:13px;">无连线</div>
+      </div>
+    </MyDialog>
+
+    <!-- 编辑备注 -->
+    <MyDialog v-model="showComment" title="编辑版本备注" :width="480">
+      <el-input v-model="commentText" type="textarea" :rows="3" maxlength="500" show-word-limit placeholder="请输入版本备注（如：本版调整了营收目标的权重）" />
+      <template #footer>
+        <el-button size="small" @click="showComment = false">取消</el-button>
+        <el-button size="small" type="primary" :loading="savingComment" @click="saveComment">保存</el-button>
+      </template>
+    </MyDialog>
+  </div>
+</template>
+
+<script setup lang="ts">
+import { ref, computed, onMounted } from "vue"
+import { useRoute, useRouter } from "vue-router"
+import { ElMessage, ElMessageBox } from "element-plus"
+import { mapApi } from "../api/index"
+
+const route = useRoute()
+const router = useRouter()
+const mapId = computed(() => Number(route.params.id))
+
+const versions = ref<any[]>([])
+const mapsAll = ref<any[]>([])
+const loading = ref(true)
+const showDetail = ref(false)
+const detail = ref<any>(null)
+const openDims = ref<string[]>([])
+const showComment = ref(false)
+const commentText = ref("")
+const savingComment = ref(false)
+const editingRow = ref<any>(null)
+
+const mapInfo = computed(() => mapsAll.value.find((m: any) => m.id === mapId.value) || null)
+const mapTitle = computed(() => mapInfo.value?.title || `地图 #${mapId.value}`)
+
+function goBack() { router.push('/maps') }
+function goCanvas() { router.push('/maps/canvas/' + mapId.value) }
+
+async function loadMapInfo() {
+  try {
+    const r: any = await mapApi.list()
+    mapsAll.value = r.data || []
+  } catch { /* 静默 */ }
+}
+
+async function load() {
+  loading.value = true
+  try {
+    const r: any = await mapApi.versions(mapId.value)
+    versions.value = Array.isArray(r) ? r : (r.data || [])
+  } catch (e: any) {
+    ElMessage.error("加载版本失败: " + (e?.response?.data?.detail || e?.message || "未知错误"))
+    versions.value = []
+  } finally {
+    loading.value = false
+  }
+}
+
+async function viewDetail(row: any) {
+  try {
+    const r: any = await mapApi.versionDetail(mapId.value, row.id)
+    detail.value = r.data || r
+    openDims.value = (detail.value?.dimensions || []).map((d: any) => d.key || d.name)
+    showDetail.value = true
+  } catch (e: any) {
+    ElMessage.error("加载版本详情失败: " + (e?.response?.data?.detail || e?.message || "未知错误"))
+  }
+}
+
+function editComment(row: any) {
+  editingRow.value = row
+  commentText.value = row.comment || ""
+  showComment.value = true
+}
+
+async function saveComment() {
+  if (!editingRow.value) return
+  savingComment.value = true
+  try {
+    await mapApi.versionUpdateComment(mapId.value, editingRow.value.id, commentText.value.trim())
+    ElMessage.success("备注已更新")
+    showComment.value = false
+    load()
+  } catch (e: any) {
+    ElMessage.error("更新失败: " + (e?.response?.data?.detail || e?.message || "未知错误"))
+  } finally {
+    savingComment.value = false
+  }
+}
+
+async function rollback(row: any) {
+  try {
+    await ElMessageBox.confirm(
+      `确定回滚到版本 ${row.version}？\n当前画布内容将自动备份为新版本，不会被覆盖丢失。`,
+      "回滚确认",
+      { type: "warning", confirmButtonText: "确认回滚", cancelButtonText: "取消" }
+    )
+  } catch { return }
+  try {
+    const r: any = await mapApi.versionRollback(mapId.value, row.id)
+    ElMessage.success(r?.message || "回滚成功")
+    load()
+    loadMapInfo()
+  } catch (e: any) {
+    ElMessage.error("回滚失败: " + (e?.response?.data?.detail || e?.message || "未知错误"))
+  }
+}
+
+onMounted(() => { load(); loadMapInfo() })
+</script>
+
+<style scoped>
+.mv-wrap { padding: 4px 2px; }
+.mv-header { }
+.mv-title-row { display:flex; align-items:center; margin-bottom:16px; }
+.mv-empty { text-align:center; color:#999; padding:40px 0; }
+.mv-cur-ver { font-weight:700; color:#409eff; }
+.mv-dim { color:#666; font-size:13px; }
+.mv-sep { color:#ddd; margin:0 4px; }
+.mv-detail-meta { margin-bottom:12px; }
+.mv-dim-title { font-weight:600; font-size:14px; }
+.mv-obj { padding:8px 12px; margin-bottom:6px; background:#f8fafc; border-radius:8px; border:1px solid #eef2f7; }
+.mv-obj-name { font-weight:500; color:#303133; }
+.mv-obj-kpis { margin-top:4px; font-size:12px; color:#909399; }
+.mv-conn-title { margin:16px 0 8px; font-weight:600; font-size:13px; color:#606266; }
+</style>