diff --git a/components/modbus/modbus_block_host.cpp b/components/modbus/modbus_block_host.cpp
index 5ce0d83..749510c 100644
--- a/components/modbus/modbus_block_host.cpp
+++ b/components/modbus/modbus_block_host.cpp
@@ -2,7 +2,7 @@
 
 #include "modbus_basic.hpp"
 using namespace iflytop;
-#define DEBUG 1
+#define DEBUG 0
 ModbusBlockHost::ModbusBlockHost() {}
 ModbusBlockHost::~ModbusBlockHost() {}