The present application relates to a kind of packing box with anti-theft lock catch, packing box includes box body, left upper cover and right upper cover, respectively on the front side wall and rear side wall of box body, sealing device is arranged, sealing device left upper cover, right upper cover and box body are locked together, sealing device includes mutually locked and separated insert buckle
assembly and buckle seat component, respectively on outer insert buckle seat and inner insert buckle seat, outer lock catch hole and inner lock catch hole are arranged, anti-theft lock catch includes lock catch body and easy broken connecting portion, lock catch body is located in outer lock catch hole and inner lock catch hole, respectively on lock catch body, push away portion and elastic lock catch are arranged, elastic lock catch is clamped in the inner side edge of outer lock catch hole, the length of elastic lock catch is shortened, so that the wall thickness of packing box is further reduced.The first push block and the second push block are respectively pressed on push away portion, move lock catch body to the inside of box, so that the lock catch body after fracture is separated from inner lock catch hole.