VEHICLE SEAT FRAME AND VEHICLE SEAT

There is provided a seatback in which plural tubular portions are formed in a back frame by bending a single panel, and the plural tubular portions respectively configure closed cross-sections. Here, respective end portions of the tubular portions are joined to each other by being abutted and welded at joining portions, and the closed cross-sections of the tubular portions are continuous with each other. Therefore, the strength of the end portions of the tubular portions of the back frame can be increased.