diff --git a/chassis/db_model.py b/chassis/db_model.py
index a03294a..08cf958 100644
--- a/chassis/db_model.py
+++ b/chassis/db_model.py
@@ -26,10 +26,11 @@ class BaseCrud(BaseModel):
 
     @classmethod
     def filtered_query(cls, session, filter_args=None, filter_kwargs=None) -> Query:
-        if filter_args:
-            return session.query(cls).filter(*filter_args).filter_by(**filter_kwargs)
-        else:
-            return session.query(cls).filter().filter_by(**filter_kwargs)
+        if not filter_args:
+            filter_args = []
+        if not filter_kwargs:
+            filter_kwargs = {}
+        return session.query(cls).filter(*filter_args).filter_by(**filter_kwargs)
 
     # 增
     @classmethod
@@ -90,10 +91,11 @@ class InfoCrud(BaseModel):
 
     @classmethod
     def filtered_query(cls, session, filter_args=None, filter_kwargs=None) -> Query:
-        if filter_args:
-            return session.query(cls).filter(*filter_args).filter_by(**filter_kwargs)
-        else:
-            return session.query(cls).filter().filter_by(**filter_kwargs)
+        if not filter_args:
+            filter_args = []
+        if not filter_kwargs:
+            filter_kwargs = {}
+        return session.query(cls).filter(*filter_args).filter_by(**filter_kwargs)
 
     # 增
     @classmethod