diff --git a/plugins/dify/main.py b/plugins/dify/main.py
index c70a67b..32d57f9 100644
--- a/plugins/dify/main.py
+++ b/plugins/dify/main.py
@@ -152,7 +152,7 @@ class DifyPlugin(MessagePluginInterface):
                         await bot.send_image_message((roomid if roomid else sender), Path(response))
                     else:
                         # 如果是普通文本，则在长度大于100字时，转为图片发送
-                        if len(response) > 200:
+                        if len(response) > 400:
                             # 转图片
                             respath = await convert_md_str_to_image(response, "dify_output.jpg")
                             await bot.send_image_message((roomid if roomid else sender), Path(respath))
@@ -215,7 +215,7 @@ class DifyPlugin(MessagePluginInterface):
                     await bot.send_image_message((roomid if roomid else sender), Path(response))
                 else:
                     # 如果是普通文本，则在长度大于100字时，转为图片发送
-                    if len(response) > 200:
+                    if len(response) > 400:
                         # 转图片
                         respath = await convert_md_str_to_image(response, "dify_output.jpg")
                         await bot.send_image_message((roomid if roomid else sender), Path(respath))