diff --git a/robomaster_pi/conn_odom.py b/robomaster_pi/conn_odom.py
index 6c91d5d09a2272f5f4a9b54ba1aefafece33e89b..7fe1a2d099a3be6136c035ad7b40de025339d163 100644
--- a/robomaster_pi/conn_odom.py
+++ b/robomaster_pi/conn_odom.py
@@ -21,7 +21,7 @@ class OdometryPublisher(Node):
 
     def sub_position_handler(self, position_info):
         self.x, self.y, self.z = position_info
-        print("ok")
+        print("chassis position: x:{0}, y:{1}, z:{2}".format(self.x, self.y, self.z))
         self.publish_odometry()
 
     def publish_odometry(self):