diff --git a/apps/worker/worker_app/tasks/asset_quality_scoring_task.py b/apps/worker/worker_app/tasks/asset_quality_scoring_task.py
index 083b58c49..83a265acd 100644
--- a/apps/worker/worker_app/tasks/asset_quality_scoring_task.py
+++ b/apps/worker/worker_app/tasks/asset_quality_scoring_task.py
@@ -18,6 +18,7 @@ from worker_app.celery_app import celery_app
 from worker_app.db import SessionLocal
 
 from packages.adapters.sqlalchemy_impl.asset_repository import SQLAlchemyAssetRepository
+from packages.domain.classification import ClassificationStatus
 from packages.shared.storage import get_shared_storage_service
 
 logger = get_task_logger(__name__)
@@ -96,7 +97,7 @@ def calculate_asset_quality_task(self, asset_id: str) -> dict:
                     confidence = 1.0
                 existing_meta["classification"] = classification
                 existing_meta["classification_confidence"] = confidence
-                asset.classification_status = "completed"
+                asset.classification_status = ClassificationStatus.COMPLETED
                 asset.metadata = existing_meta
                 logger.info(
                     "[quality_score] asset=%s 自动分类完成: category=%s confidence=%.2f",
@@ -110,6 +111,8 @@ def calculate_asset_quality_task(self, asset_id: str) -> dict:
                     asset_id,
                     cls_err,
                 )
+                # 分类失败显式标记 FAILED，避免停留在 PENDING 被反复重试
+                asset.classification_status = ClassificationStatus.FAILED
 
         asset_repo.update(asset)
         db.commit()
diff --git a/packages/adapters/sqlalchemy_impl/asset_repository.py b/packages/adapters/sqlalchemy_impl/asset_repository.py
index f316fa543..d1cab4535 100755
--- a/packages/adapters/sqlalchemy_impl/asset_repository.py
+++ b/packages/adapters/sqlalchemy_impl/asset_repository.py
@@ -128,8 +128,12 @@ class SQLAlchemyAssetRepository:
             height=asset.height,
             fps=asset.fps,
             codec=asset.codec,
-            status=asset.status.value,
-            classification_status=asset.classification_status.value,
+            status=(asset.status.value if hasattr(asset.status, "value") else str(asset.status)),
+            classification_status=(
+                asset.classification_status.value
+                if hasattr(asset.classification_status, "value")
+                else str(asset.classification_status)
+            ),
             classification_result=(json.dumps(asset.metadata) if asset.metadata else None),
             quality_score=asset.quality_score,
             uploaded_by_user_id=asset.uploaded_by_user_id or "system",
@@ -142,7 +146,7 @@ class SQLAlchemyAssetRepository:
         self.session.flush()
         self._sync_asset_tags(asset.id, asset.tag_ids)
         # Issue #1776: 自动维护素材库计数（同事务内原子更新）
-        if asset.library_id and asset.status.value != "deleted":
+        if asset.library_id and (getattr(asset.status, "value", str(asset.status)) != "deleted"):
             from sqlalchemy import func
 
             self.session.query(AssetLibraryModel).filter(AssetLibraryModel.id == asset.library_id).update(
@@ -168,8 +172,12 @@ class SQLAlchemyAssetRepository:
         model.height = asset.height
         model.fps = asset.fps
         model.codec = asset.codec
-        model.status = asset.status.value
-        model.classification_status = asset.classification_status.value
+        model.status = asset.status.value if hasattr(asset.status, "value") else str(asset.status)
+        model.classification_status = (
+            asset.classification_status.value
+            if hasattr(asset.classification_status, "value")
+            else str(asset.classification_status)
+        )
         model.classification_result = json.dumps(asset.metadata) if asset.metadata else None
         model.quality_score = asset.quality_score
         model.uploaded_by_user_id = asset.uploaded_by_user_id or model.uploaded_by_user_id