Fuente: WIPO "industrial hemp" The industrial hemp crushing device with the protection structure comprises a body, a crushing box, an insulation box and a water storage cavity, a feeding box is installed on the top of the crushing box, and the insulation box is installed on the outer wall of the feeding box. According to the industrial hemp crushing device, the cover plate and the insulating box are installed to prevent hemp chippings from splashing out when industrial hemp is crushed by the industrial hemp crushing device, the switch button is pressed down, the electromagnet electrically connected with the switch button is powered off and loses magnetism, the cover plate is bounced by the bouncing force of the torsional spring, and the spring bounces to drive the second insulating plate to move upwards; the insulating block drives the first conducting strip to make contact with the resistor, the power module transmits current to the motor through the resistor, the current received by the motor is decreased, the rotating speed of the motor is decreased, the crushing speed of the industrial hemp crushing device is decreased accordingly, and the probability that hemp chippings are ejected out of the crushing device is decreased accordingly. And therefore, a user is prevented from being injured by splashed hemp chippings when the industrial hemp is put into the industrial hemp crushing device.