CNC end-face milling and center hole drilling machine is widely applied to milling end faces and drilling center holes of crankshaft components and machining excircles in automobile, tractor and motor industries etc. The above-mentioned processes can be finished in one setting. The special chucks and tools can be designed and selected according to component dimension and roughcast shape of customers. Stepless spindle speed is controlled by frequency adjustable motor. NC control system is integrated in electrical system, and hydraulic system adopts control system consisting of overlap valves. Drilling center holes is realized by servomotor driven ball screw. The machine is guarded completely, with interlocking switch on the sliding door, to guarantee the safety of human beings and the machine.