The invention relates to the work fixture technology, in particular to a multifunctional welding piece fixture dedicated to welding training, comprising a pedestal, an upright post, a transverse arm, a clamping part; the bottom of the upright post and the pedestal are connected into a whole, the transverse arm comprises a transverse beam and a sleeve, one end of the transverse beam is connected with the sleeve, and the other end of the transverse beam is connected with the clamping part, the sleeve is sheathed on the upright post, the outside of the sleeve is provided with a tapped hole penetrating through the pipe, the tapped hole is connected with a sleeve fastening handle by a thread, and the sleeve fastening handle is screwed up to clamp the sleeve on the upright post in a firm way. The invention can adjust the height and angle of the welding piece; a pipe fixture is connected with the transverse arm and the transverse beam by a bolt, a plate fixture is connected with the transverse arm and the transverse beam in a suiting way, thus being capable of changing the welding position of the specimen and realizing simulating multiple welding positions; the clamping operation is convenient and simple, thus improving training efficiency; the clamping is steady, and the specimen is uneasy to sway and fall off, thus being safe and reliable.