Fixed light beam laser welding machine, with the double road xenon pump, high reflect cavity and Nd:YAG crystal tube constitute the laser power, electric light has high conversion rate. Split type water chiller according to the system setting temperature automatic cooling and ensure to process safety of equipment power. Single color LCD screen button type control system, current closed loop feedback control laser power supply, pulse waveform can set most 8 lines, ensure to weld the different metals. Single moving control system of touch LCD screen, it can edit automatically of plane's spot, straight line, circle,square, arc, elaborate plane picture etc.Semiconductor red light indicate position,CCD monitor can check the weld spot's quality and finish half auto/auto's spot welding, butt/stitch /seal welding.