diff --git a/src/addon/aikefu/api/controller/Kefu.php b/src/addon/aikefu/api/controller/Kefu.php
index 26fa47e08..7e0272951 100644
--- a/src/addon/aikefu/api/controller/Kefu.php
+++ b/src/addon/aikefu/api/controller/Kefu.php
@@ -159,7 +159,7 @@ class Kefu extends BaseApi
                 'conversation_id' => $result['conversation_id'] ?? $conversation_id,
                 'message_id' => $result['message_id'] ?? '',
                 'role' => 'user',
-                'content' => $message,
+                'content' => json_encode($message),
             ]);
 
             // 保存机器人回复
@@ -169,7 +169,7 @@ class Kefu extends BaseApi
                 'conversation_id' => $result['conversation_id'] ?? $conversation_id,
                 'message_id' => $result['id'] ?? '',
                 'role' => 'assistant',
-                'content' => $result['answer'] ?? '',
+                'content' => json_encode($result['answer'] ?? ''),
             ]);
 
             // 更新会话状态或创建新会话