The utility model provides a but reuse's express delivery package box device, includes box body, apron, fixed stop, fastening spring, fixed couple, identification code, storage bag, nylon lifting hook, nylon velvet ribbon, hinge. The utility model has the advantages of it is following: through design fixed stop, fastening spring and filler materials such as the fixed foam of geting in touch in thesubstituting prior art scheme, bubble chamber film in the box body, the realization is fixed to article, prevents in the transportation owing to collide the damage that causes article, when long, wide, the high external dimension of article was lighter than the box body and tolerates the maximum size, the packing carton can be realized making the packing carton have the commonality with the fixedof volume article and packing, adopt the polycarbonate material, compare the intensity that has greatly improved the packing carton with adopting the paper packing carton in the prior art scheme, avoided effectively in the transportation because packing carton that extrusion, collision caused warp, damaged and cause the inside article damage of box body.