The paper cutting machine has feature as automatic paper clamp, paper cut and paper send, high cut precision, low noise, and long life usage. Its design structure is easy to operate and insure safety. Its paper sending system adopts whole body slotless chrome worktable, linear guide and high-speed ball screw, so it can insure the correct position with a high speed. Both of the paper clamping device and paper clamp device adopt hydraulic driven. The pressure is adjusted stepless. The big pressure adjusting range insure various paper cutting pressure needs. It is equipped with photo cell, double hands cutting button, knife light line, knife seat jogging devices. Therefore, it can insure the operator's safety and convenient operation, high cutting precision, low noise, and long life using.