diff --git a/APP/inc/delay_conf.h b/APP/inc/delay_conf.h
index 1285ed4..d9115bd 100644
--- a/APP/inc/delay_conf.h
+++ b/APP/inc/delay_conf.h
@@ -36,10 +36,8 @@
 
 #endif
 
-#define DELAY_SYS_RUN_LED			DELAY_MS(500)  //系统指示灯延时500ms
-#define DELAY_SYS_SLEEP_LED			DELAY_MS(1000) //系统指示灯延时1s
-#define DELAY_MB_SLAVE_POLL		    DELAY_MS(1)   //Modbus从机轮训时间
-#define DELAY_MB_MASTER_POLL	    DELAY_MS(1)   //Modbus主机轮训时间
+#define DELAY_SYS_RUN_LED			DELAY_MS(500)
+#define DELAY_SYS_SLEEP_LED			DELAY_MS(1000)
 
 #endif  
 
diff --git a/APP/src/app_task.c b/APP/src/app_task.c
index 96ac325..a6c92e9 100644
--- a/APP/src/app_task.c
+++ b/APP/src/app_task.c
@@ -80,7 +80,6 @@ void thread_entry_ModbusSlavePoll(void* parameter)
 	while (1)
 	{
 		eMBPoll();
-		rt_thread_delay(DELAY_MB_SLAVE_POLL);
 	}
 }
 
@@ -97,7 +96,6 @@ void thread_entry_ModbusMasterPoll(void* parameter)
 	while (1)
 	{
 		eMBMasterPoll();
-		rt_thread_delay(DELAY_MB_MASTER_POLL);
 	}
 }