Lining frame for packaging box

The utility model discloses a packing box's lining frame, including the lining frame, the lining frame is assembled in the box body, the lining frame includes the support piece and placing plate, wherein the support piece is provided with two symmetry, and the top between the two support piece is transversely and horizontally provided with a plurality of placing plate, the support piece includes the horizontal plate, side plate and support, the support is provided with the side plate, the side plate is provided with the horizontal plate, the side plate is provided with the side plate, and the support is provided with the placing plate. A side plate is slidably arranged on the end face of the side, close to the vertical end face in the box body, of the transverse plate, a support is vertically and downwards fixed to the bottom face of the transverse plate, a plurality of through holes are formed in the top face of the containing plate in the mode that the top face transversely, evenly and vertically penetrates