The tank welding robot system is mainly composed of a 6-axis welding robot, a welding machine, a water-cooled box, a water-cooled welding gun, a laser tracking system, a robot walking track, a welding positioner, a fixture, a PLC control system, etc. The system design supports the welding of various tank sizes and materials, adapts to different production needs, and reduces equipment replacement time. Through the intelligent monitoring system, users can view the welding status and equipment performance in real time, remotely diagnose faults, and reduce downtime.