diff --git a/app/services/dify-client.server.ts b/app/services/dify-client.server.ts
index 559967b..e03c64f 100644
--- a/app/services/dify-client.server.ts
+++ b/app/services/dify-client.server.ts
@@ -202,11 +202,35 @@ export const difyClient = {
         // user 字段已移除，后端会自动从 JWT 中提取 username
         const body = {};
 
+        console.log('🗑️ [DifyClient] 删除会话:', conversationId);
+
         const response = await difyFetch(`conversations/${conversationId}`, {
             method: 'DELETE',
             body: JSON.stringify(body),
         }, jwt);
-        return response.json();
+
+        console.log('🗑️ [DifyClient] 删除会话响应:', {
+            status: response.status,
+            statusText: response.statusText,
+            contentType: response.headers.get('Content-Type')
+        });
+
+        // 检查响应的Content-Type
+        const contentType = response.headers.get('Content-Type');
+
+        // 如果是JSON响应，解析JSON
+        if (contentType && contentType.includes('application/json')) {
+            const data = await response.json();
+            console.log('🗑️ [DifyClient] 删除会话JSON响应:', data);
+            return data;
+        }
+
+        // 如果不是JSON，返回成功标识
+        const text = await response.text();
+        console.log('🗑️ [DifyClient] 删除会话文本响应:', text);
+
+        // 返回标准成功响应
+        return { result: 'success' };
     },
 
     // 更新消息反馈