diff --git a/backend/app/routers/collections.py b/backend/app/routers/collections.py
index 05f50cc..b2325e1 100644
--- a/backend/app/routers/collections.py
+++ b/backend/app/routers/collections.py
@@ -284,8 +284,11 @@ def get_stats(
     """获取藏品统计 - 使用数据库聚合查询优化性能"""
     from sqlalchemy import func, case
     
-    # 基础查询条件
-    base_filter = True if current_user.role == "admin" else Collection.f99_91_user_id == current_user.f99_90_id
+    # 基础查询条件 - 检查用户是否登录
+    if current_user is None or not hasattr(current_user, 'role'):
+        base_filter = False  # 未登录用户不能查看任何藏品
+    else:
+        base_filter = True if current_user.role == "admin" else Collection.f99_91_user_id == current_user.f99_90_id
     
     # 总数
     total_count = db.query(func.count(Collection.f99_90_id)).filter(base_filter).scalar() or 0