With the development of modern mechanical automation, radio control technology has been applied in all the fields. In this paper, a kind of research method was proposed by using radio remote to control the current of inverter welding machine. It has changed the former inconvenience of cable control, which is influenced by directional infrared control and expensive tedious radio frequent control. Research results show that it is a simple, reliable technique of remote control technology, the welding current could be easily controlled, and it has good signal stabilization.