Hydraulic gear hobbing machine adopts gear hobs to hob cylindrical spur gears, helical gears and splines by generating method. Suitable for single piece, small batch or mass production gear processing. The main electrical and hydraulic components adopt the brand products of well-known domestic manufacturers. The main key castings such as bed and column adopt double-wall and high-rib plate structure, which has compact structure, strong dynamic and static rigidity, and high precision. The  CNC gear hobbing machine adopts a semi-sealed protective cover in the working area, which does not leak oil, and eliminates the pollution of the production environment caused by seepage and oil leakage during gear hobbing. Some special functional components can be selected according to user requirements. The  CNC gear hobbing machine has strong rigidity, stable working precision and convenient operation. The  CNC gear hobbing machine can work in the way of down milling or up milling. The  CNC gear hobbing machine is equipped with an automatic stop mechanism, a safety device and an automatic lubrication system, according to the GB/T8064-1998 standard of “Gear Hobbing Machine Precision Inspection”. According to the large or small modulus of the processed gear, it can be fed once or multiple times, and its finishing precision can reach the level 7 precision of GB/T10095-2001 “Involute Cylindrical Gear Precision”.