diff --git a/backend/app/crud/crud_source.py b/backend/app/crud/crud_source.py
index f183c39..9c7aa0a 100644
--- a/backend/app/crud/crud_source.py
+++ b/backend/app/crud/crud_source.py
@@ -24,6 +24,10 @@ def get_multi(db: Session, skip: int = 0, limit: int = 100) -> List[InfoSource]:
 def create(db: Session, obj_in: InfoSourceCreate) -> InfoSource:
     """创建新的信息源"""
     db_obj = InfoSource(**obj_in.model_dump())
+    exits =db.query(InfoSource).filter(InfoSource.source_name == db_obj.source_name).first()
+    if exits:
+        db.close()
+        return db_obj
     try:
         db.add(db_obj)
         db.commit()