diff --git a/plugins/dify/main.py b/plugins/dify/main.py
index 75126fd..b2d3515 100644
--- a/plugins/dify/main.py
+++ b/plugins/dify/main.py
@@ -215,7 +215,7 @@ class DifyPlugin(MessagePluginInterface):
                     return False, "获取媒资失败"
             else:
                 # 如果是普通文本，则在长度大于800字时，转为图片发送
-                if len(response) > 800:
+                if len(response) > 1500:
                     # 转图片
                     output_image = f"dify_output_{int(time.time())}.png"
                     respath = await convert_md_str_to_image(response, output_image)