The invention relates to a grinding device, and especially relates to a raw material grinding device for cosmetic production. The raw material grinding device for cosmetic production, provided by theinvention, has the advantages of avoiding of manual grinding of cosmetic raw materials, time and labor saving, and uniformity and fineness in grinding of the cosmetic raw materials. The raw material grinding device for cosmetic production comprises a bottom plate, a left bracket, a right bracket, a support rod, a discharging hopper, a cross bar, a grinding box, a collecting box and the like; and the left part of the upper side of the bottom plate is fixedly connected with the left bracket, and the right part of the upper side of the bottom plate is fixedly connected with the right bracket. Thedevice achieves the effects of avoiding of manual grinding of cosmetic raw materials, time and labor saving, and uniformity and fineness in grinding of the cosmetic raw materials, the amount of the cosmetic raw materials entering the grinding box can be controlled through the arrangement of a vertical rod, a baffle plate, a pulling wire, a hanging ring and a hook, and a user does not need to turnon and off a motor by a hand through arranging a second spring, a button and a contact plate.