A home made high-power laser processing system for industry application is reported. The symmetrical parallel plane four-rod series resonator CW Nd∶ YAG laser with krypton lamp-pumped has been developed, the output power is more than 2100 W with beam parameter product of 24 mm·mrad. The total electro-optics efficiency of system with lamp pumped YAG crystal is as high as 3.5 %. The output laser is transmission with 600 μm core diameter fiber. The key factors, such as high-power laser output, high efficiency fiber coupling and controlling system of adaptive processing at the premise that the high-power laser processing system guarantees the beam quality, are analyzed. It is conclusion that the laser processing machine is a stability, fastness, operating convenience system. The system can connect with moving components, such as robot and machine, and meet the processing requirements of industry application.