diff --git a/knowledge/collection.py b/knowledge/collection.py
index 7ae9e5f..26b3ee1 100644
--- a/knowledge/collection.py
+++ b/knowledge/collection.py
@@ -348,6 +348,8 @@ class CollectionMixin:
             - department: 所属部门
             - description: 描述
         """
+        # 从磁盘重新加载元数据，确保多 worker 进程间状态一致
+        self._metadata = self._load_metadata()
         result = []
 
         # 扫描 base_path 下的所有子目录作为向量库