PURPOSE: The base socket and extension socket are fixed and coupled to the push scheme in the extended rod, the installation work is facilitated. CONSTITUTION: An anchor assembly(100) based on stud welding comprises a refractory member(110), a base socket(120), and a stud welding pin. The refractory member has the center hole. The top of the base socket is settled in the single-side of the refractory member. The stud welding pin is inserted through the combining hole and core slot of the base socket. In order that the base socket adheres closely to the refractory material, the stud welding pin welds with a base metal material(10).