Adhesive-free paper packaging box

The utility model relates to the technical field of packaging boxes, and discloses a non-adhesive paper packaging box which comprises a box body, the box body comprises a bottom plate, the bottom plate is a rectangular plate body, first side plates are arranged on the side edges of the bottom plate, every two adjacent first side plates are connected through a folded plate, the first side plates on the peripheral side of the bottom plate are bent upwards to form a cavity, and the folded plate is arranged in the cavity. Any first side plate is connected with a cover plate, the cover plate is bent towards one side to seal the opening of the cavity, a plurality of supporting legs are installed on the bottom face of the bottom plate and connected with a bottom support, and the bottom support is attached to the bottom face of the bottom plate. The box body is of an integral structure, the first side plate and the cover plate are bent along the folding marks to form the box body structure, glue is not needed for bon