The utility model discloses a welding rod packaging box, include: outer box, interior box, intermediate layer, horizontal division board, longitudinal divider, square interval, welding rod box, top cap, flange piece, interior box sets up the intermediate position outer box, with dissection between outer box and the interior box, fill full sponge piece in the intermediate layer, inside vertical horizontal partition version and the longitudinal divider of being provided with of interior box, horizontal division board separates to become the unified square interval of rule with the longitudinal divider with interior box, set up a welding rod box in every square interval, the inner wall that the welding rod box is cylinder and the welding rod of rule out -of -the -box global and square interval is tangent, one deck sponge layer is laid to the bottom of interior box, on the top cap rigid coupling have with intermediate layer thickness assorted flange piece, the flange piece can imbed the intermediate layer under the exogenic action in. The utility model has the advantages of practice thrift space, protection welding rod quality.