The numerical control system for energy storage single side projection welding is designed to realize the welding of automobile brake shoes and steel mesh. The structure of the numerical control system for energy storage single side projection welding is introduced. According to the energy storage single side numerical control welding process,a human-computer interaction interface based on touch screen is designed. The communication between the touch screen and main control board can conveniently realize the real-time monitoring of welding status,manual operation control,multiple sets of parameter storage and recall,and fault detection of welding process.