The utility model relates to an industry vision detection system's light control, specifically speaking are towards wireless LED light source controller of machine vision's digitization. Including host computer, wireless serial communication module, embedded control unit, light source drive circuit, LED light source and power supply module. The embedded control unit is given through wireless serial communication module with control command data transmission to the host computer, and the PWM ripples of corresponding duty cycle is exported to the embedded control unit after handling received instruction data to the luminance of control LED light source. The utility model discloses generate heat little, rational in infrastructure, simultaneously accurate LED light source, the especially control command data of controlling the four ways passageway steadily adopt non -contact's wireless input, overcome the complexity of wiring, easily operate actually installing and use the in -process, can promote and be used for industry vision detection system.