In order to maintain the sharpness of the blade, the thickness of the cut paper should not be too thick, preferably no more than 40mm, and the pressure of the hydraulic paper cutter should be different for paper of different materials. In order to achieve high cutting precision, it is necessary to regularly check whether the blade is blunt, and sharpen the blade in time if it is blunt. The operator should always replace the blade to prevent the blade from breaking during the cutting process and delaying the time. To consider the temperature and humidity of the environment, the appropriate temperature and humidity are conducive to the operation of the hydraulic paper cutter and the stability of the cutting.