Cutting device for building prefabricated slab

The utility model provides a cutting device for a building precast slab, which relates to the technical field of cutting devices and comprises a box body, through grooves are respectively arranged on two sides of the inner surface of the box body, guide rods are arranged in the through grooves, sliding cutting mechanisms are arranged on the two guide rods, a feed port is arranged on the lower surface of one side of the box body, and a feed port is arranged on the lower surface of the other side of the box body. Sliding rods are symmetrically arranged on the lower surface of one side of the box body, a sliding plate is arranged in the box body, sliding holes matched with the sliding rods are formed in the sliding plate, a groove is formed in the lower surface of the sliding plate, a rack is arranged in the groove, and a driving mechanism matched with the rack is arranged on the outer surface of one side of the box body and located below the feeding port. According to the prefabricated slab cutting device, the