A door frame includes: an outer joint part of an outer member and an inner joint part of an inner member are welded at a plurality of welding portion; wherein, in a cross-section orthogonal to an longitudinal direction, the inner joint part includes an inner inside surface an inner outside surface and an inner side surface, and the outer joint part includes an outer inside surface and an outer side surface; wherein, in at least one of the welding portions, an inner notch is provided at an outer edge of the inner joint part and a weld path is formed between the inner side surface and the outer side surface; and wherein a weld bead, which is formed to fill the weld path, is attached to the inner outside surface, the inner side surface, the inner inside surface, the outer side surface, and the outer inside surface.