diff --git a/bsp/src/at_device_nt26k.c b/bsp/src/at_device_nt26k.c
index 375d569..1b8ee90 100644
--- a/bsp/src/at_device_nt26k.c
+++ b/bsp/src/at_device_nt26k.c
@@ -373,7 +373,6 @@ int at_send_data(struct at_device *device, const char *data, rt_size_t size)
 
     while (retry < max_retry_count)
     {
-        rt_thread_mdelay(IMEI_Delay()); // 获取一个随机延时
         if (at_obj_exec_cmd(device->client, resp, TCP_SEND_DATA, socket_id, data) == RT_EOK)
         {
             if ((line_buffer = at_resp_get_line(resp, 2)) != RT_NULL)