The utility model belongs to the field of crushing equipment for kitchen garbage treatment, and particularly relates to a crushing device for kitchen garbage treatment, which comprises a crushing equipment body, a classifying mechanism is arranged at the top of the crushing equipment body, a moving mechanism is arranged at the top of the crushing equipment body, and the classifying mechanism is matched with the moving mechanism for use. Through the structural design of the classification mechanism, a user enables different kitchen garbage to enter the treatment box through a protective cover, the treatment box is crushed through a crushing column in the treatment box, the function of treating the different kitchen garbage is achieved, and the problems that in the crushing process of kitchen garbage treatment equipment, garbage splashing is caused, and the kitchen garbage treatment efficiency is improved are solved. The problems that in the prior art, a protection device of crushing equipment cannot be effectively moved, the crushing treatment equipment is prone to blockage, the treatment service life of the crushing equipment is shortened, and a user cannot conveniently treat kitchen garbage are solved, and the kitchen garbage treatment efficiency is improved.