Abstract: In view of problems of poor universality, inconvenient installation and weak anti-interference ability of communication existed in current remote monitoring system of drilling rig, a remote monitoring system for coalbed methane truck-mounted drilling rig was designed. The system consists of vehicle terminal, back-end server and monitoring and management platform. The vehicle terminal collects real-time running status data of drilling rig through CAN bus, and uploads the data to the back-end server through TCP/IP protocol. The monitoring and management platform adopts B/S architecture to access the back-end server data through HTTP protocol and displays running status of drilling rig. The application results verify effectiveness of the system.