diff --git a/app/routers/assets.py b/app/routers/assets.py
index 84e4023..d863d5d 100644
--- a/app/routers/assets.py
+++ b/app/routers/assets.py
@@ -5,7 +5,7 @@
 
 from typing import List, Optional
 
-from fastapi import APIRouter, Depends, Query
+from fastapi import APIRouter, Body, Depends, Query
 from sqlmodel import Session
 
 from app.core.security import require_api_key
@@ -32,6 +32,22 @@ def list_assets(
     )
 
 
+@router.get("/export", summary="导出所有资产（数据迁移/备份）")
+def export_assets(session: Session = Depends(get_session)) -> dict:
+    return asset_service.export_assets(session)
+
+
+@router.post(
+    "/import",
+    summary="导入资产（从导出数据，按 name+类型+服务商去重）",
+    dependencies=[Depends(require_api_key)],
+)
+def import_assets_endpoint(
+    data: dict = Body(...), session: Session = Depends(get_session)
+) -> dict:
+    return asset_service.import_assets(session, data.get("assets", []))
+
+
 @router.get("/{asset_id}", response_model=AssetRead, summary="资产详情")
 def get_asset(asset_id: int, session: Session = Depends(get_session)):
     return asset_service.get_asset(session, asset_id)
diff --git a/app/services/asset_service.py b/app/services/asset_service.py
index 0b544dc..a7b6a21 100644
--- a/app/services/asset_service.py
+++ b/app/services/asset_service.py
@@ -3,7 +3,7 @@
 统一处理 Asset 主表与其一对一详情表（VPSDetail/DomainDetail/AIAccount）的联动。
 """
 
-from datetime import date
+from datetime import date, datetime
 from typing import List, Optional
 
 from fastapi import HTTPException, status
@@ -235,6 +235,47 @@ def delete_asset(session: Session, asset_id: int) -> None:
     session.commit()
 
 
+def export_assets(session: Session) -> dict:
+    """导出所有资产（含 detail）为 JSON，用于数据迁移/备份"""
+    assets = session.exec(select(Asset)).all()
+    result = []
+    for asset in assets:
+        read = _to_read(session, asset, _get_detail(session, asset))
+        result.append(read.model_dump(mode="json"))
+    return {
+        "count": len(result),
+        "exported_at": datetime.utcnow().isoformat(),
+        "assets": result,
+    }
+
+
+def import_assets(session: Session, assets_data: list) -> dict:
+    """从导出数据导入资产（按 name+asset_type+provider 去重：存在则更新，不存在则创建）"""
+    created = 0
+    updated = 0
+    errors = []
+    skip_fields = {"id", "created_at", "updated_at", "days_to_expiry", "provider_name"}
+    for item in assets_data:
+        try:
+            payload = {k: v for k, v in item.items() if k not in skip_fields}
+            existing = session.exec(
+                select(Asset).where(
+                    Asset.name == payload.get("name"),
+                    Asset.asset_type == payload.get("asset_type"),
+                    Asset.provider == payload.get("provider"),
+                )
+            ).first()
+            if existing:
+                update_asset(session, existing.id, AssetUpdate(**payload))
+                updated += 1
+            else:
+                create_asset(session, AssetCreate(**payload))
+                created += 1
+        except Exception as e:  # noqa: BLE001
+            errors.append(f"{item.get('name', '?')}: {e}")
+    return {"created": created, "updated": updated, "errors": errors}
+
+
 def list_assets(
     session: Session,
     asset_type: Optional[AssetType] = None,
diff --git a/static/js/app.js b/static/js/app.js
index 9c883bc..76d470e 100644
--- a/static/js/app.js
+++ b/static/js/app.js
@@ -761,10 +761,20 @@ const SettingsView = {
         <input type="checkbox" v-model="store.dark" @change="applyDark"> 深色模式
       </label>
     </div>
+    <div class="bg-white dark:bg-slate-900 rounded-xl border border-slate-200 dark:border-slate-800 p-4">
+      <h3 class="font-semibold text-sm mb-2">数据管理（迁移/备份）</h3>
+      <p class="text-xs text-slate-500 mb-2">导出所有资产为 JSON，可导入到新部署的实例，实现数据迁移。</p>
+      <div class="flex gap-2 flex-wrap items-center">
+        <button @click="exportData" class="text-sm px-3 py-1.5 rounded-lg border border-slate-300 dark:border-slate-700 hover:bg-slate-50 dark:hover:bg-slate-800">导出数据</button>
+        <label class="text-sm px-3 py-1.5 rounded-lg border border-slate-300 dark:border-slate-700 hover:bg-slate-50 dark:hover:bg-slate-800 cursor-pointer">导入数据<input type="file" accept=".json" @change="onImportFile" class="hidden"></label>
+      </div>
+      <div v-if="dataResult" class="mt-2 text-xs px-3 py-2 rounded-lg bg-slate-50 dark:bg-slate-800/50">{{ dataResult }}</div>
+    </div>
   </div>`,
   setup() {
     const notifyChannels = ref([]);
     const notifyResult = ref('');
+    const dataResult = ref('');
     onMounted(async () => {
       try { const r = await Api.get('/notify/channels'); notifyChannels.value = r.channels || []; } catch (e) { /* ignore */ }
     });
@@ -785,7 +795,36 @@ const SettingsView = {
         notifyResult.value = text;
       } catch (e) { notifyResult.value = '失败：' + e.message; }
     }
-    return { store, settings, save: saveSettings, applyDark, notifyChannels, notifyResult, testNotify, checkRenewals };
+    async function exportData() {
+      dataResult.value = '导出中…';
+      try {
+        const r = await Api.get('/assets/export');
+        const blob = new Blob([JSON.stringify(r, null, 2)], { type: 'application/json' });
+        const url = URL.createObjectURL(blob);
+        const a = document.createElement('a');
+        a.href = url;
+        a.download = 'vps-manager-export-' + new Date().toISOString().slice(0, 10) + '.json';
+        a.click();
+        URL.revokeObjectURL(url);
+        dataResult.value = '导出成功：' + r.count + ' 个资产';
+      } catch (e) { dataResult.value = '导出失败：' + e.message; }
+    }
+    function onImportFile(e) {
+      const file = e.target.files[0];
+      if (!file) return;
+      const reader = new FileReader();
+      reader.onload = async (ev) => {
+        dataResult.value = '导入中…';
+        try {
+          const data = JSON.parse(ev.target.result);
+          const r = await Api.post('/assets/import', data);
+          dataResult.value = '导入完成：新增 ' + r.created + '，更新 ' + r.updated + (r.errors && r.errors.length ? '，错误 ' + r.errors.length : '');
+          await loadAssets();
+        } catch (err) { dataResult.value = '导入失败：' + err.message; }
+      };
+      reader.readAsText(file);
+    }
+    return { store, settings, save: saveSettings, applyDark, notifyChannels, notifyResult, testNotify, checkRenewals, dataResult, exportData, onImportFile };
   },
 };