As a controller developed by Ruida Technology for laser welding, the handheld laser welding system integrates laser cutting, laser welding and laser cleaning and can switch processing mode freely among them. It supports dual galvanometer motor control, a variety of different swing types, automatic wire feeding, laser power slowly rising and falling, gas on in advance, gas off delay and other functions. The system is easy to operate, and can give a real-time display of input and output IO status, alarm information and motion status.