Abstract: In order to realize wireless communication of automatic drilling rig, a fast networking system for underground drilling rig in coal mine is studied, which can realize remote control and parameter monitoring of drilling rig on the ground. The system includes the rig body, airborne equipment and mine communication system. The main part of the rig is ZYWL-4000SY automatic drill rig; the airborne equipment includes controller, camera, etc., which is used to acquire drilling rig parameters; the communication system takes the wireless base station as the core to realize the interconnection between ground and underground. The system has been tested in Henan Pingbao Coal Industry Co., Ltd. The results show that the data transmission is accurate and the effect is good, and the remote control and visual monitoring of underground automatic drilling rig are realized.