diff --git a/erniebot-agent/src/erniebot_agent/memory/base.py b/erniebot-agent/src/erniebot_agent/memory/base.py
index a062240a..b24b1002 100644
--- a/erniebot-agent/src/erniebot_agent/memory/base.py
+++ b/erniebot-agent/src/erniebot_agent/memory/base.py
@@ -103,10 +103,7 @@ def add_message(self, message: Message):
 
     def get_messages(self) -> List[Message]:
         """Get all the messages in memory."""
-        if self.msg_manager.system_message is not None:
-            return [self.msg_manager.system_message] + self.msg_manager.retrieve_messages()
-        else:
-            return self.msg_manager.retrieve_messages()
+        return self.msg_manager.retrieve_messages()
 
     def clear_chat_history(self):
         """Reset the memory."""