Steel structure support device facilitating stable welding

The utility model provides a device facilitating stable welding of a steel structure support and belongs to the technical field of steel structure supports. The device comprises a base, a placing table and a welding mechanism, the placing table is rotationally installed on the surface of the base, a support is placed on the surface of the placing table, the welding mechanism is installed on the surface of the base and used for welding the support, the welding mechanism comprises a support and a positioning frame, and the support is fixedly installed on the surface of the base; an electric telescopic rod is installed in an inner cavity of the support and electrically connected with an external power source, and a welding head is fixedly installed at the output end of the electric telescopic rod. The welding mechanism is arranged, the support can be transversely positioned through the two positioning frames and the positioning rod, meanwhile, the pressing disc is pressed on the surface of the support, the suppo