The utility model provides a welding set was restrainted to steel pipe steel pipe is restrainted and being pushed down side and hold up device, includes the support, is equipped with the lift drive who is used for driving its lift on the support, the lower extreme of support is equipped with compression roller mouth, and it has a supporting sleeve to push down to span in spinning in, and the cover is equipped with the compression roller on the supporting sleeve, still include the bracing piece that passes the supporting sleeve, left board is connected to the left end of bracing piece, and right board is connected to the right -hand member of bracing piece, and the lower extreme of right board is equipped with the right side roller, pushes down the left side of spinning in and is equipped with the left side roller that corresponds with the right side roller, and the lower part of left side roller and right side roller all is located the below of compression roller, pushing down the left side of spinning in and being equipped with sideslip actuating mechanism, sideslip actuating mechanism's output and left board are connected. The utility model discloses all can fix a position steel pipe shu jinhang in upper and lower orientation and on controlling the side direction orientation to reliability of positioning is higher, and its structure simple, control also comparatively convenient.