In order to maintain the sharpness of the blade, the thickness of the cut paper should not be too thick, preferably not more than 40mm, and the pressure of the hydraulic paper cutter should be different for different paper materials. In order to have high cutting accuracy, it is necessary to regularly check whether the blade is blunt, and sharpen the sharp blade in time. Operators should always prepare to replace the blade to prevent the blade from being damaged during the cutting process and delaying time. It is necessary to consider the temperature and humidity of the environment. The appropriate temperature and humidity are conducive to the operation and cutting stability of the hydraulic paper cutter.