diff --git a/wechat_ipad/client/message.py b/wechat_ipad/client/message.py
index 32e2955..a24cc4c 100644
--- a/wechat_ipad/client/message.py
+++ b/wechat_ipad/client/message.py
@@ -245,15 +245,17 @@ class MessageMixin(WechatAPIClientBase):
                 image_base64 = base64.b64encode(f.read()).decode()
         else:
             raise ValueError("image should be str, bytes, or path")
+        self.logging.debug(f"vid_base64:{vid_base64}")
         self.logging.debug(f"images_base64:{image_base64}")
         # 打印预估时间，300KB/s
         predict_time = int(file_len / 1024 / 300)
         self.logging.info("开始发送视频: 对方wxid:{} 视频base64略 图片base64略 预计耗时:{}秒", wxid, predict_time)
 
         async with aiohttp.ClientSession() as session:
-            json_param = {"Wxid": self.wxid, "ToWxid": wxid, "Base64": vid_base64,
+            json_param = {"Wxid": self.wxid, "ToWxid": wxid, "Base64": "data:video/mp4;base64,"+vid_base64,
                           "ImageBase64": "data:image/jpeg;base64," + image_base64,
                           "PlayLength": duration}
+            self.logging.debug(f"json_param：:{json_param}")
             async with session.post(f'http://{self.ip}:{self.port}/api/Msg/SendVideo', json=json_param) as resp:
                 json_resp = await resp.json()
         self.logging.debug(f"json_resp:{json_resp}")