The invention discloses valve-shaped metal part welding equipment. A concentric-square-shaped flow conveyor line is arranged on a machining platform, a plurality of three-claw fixtures are arranged onthe concentric-square-shaped flow conveyor line, the three-claw fixtures are used for clamping the bottom of a fixing bracket, and a C-shaped metal clip is further arranged at the top of the bracket;and a feeding and discharging area and a welding area are further arranged on the concentric-square-shaped flow conveyor line in the conveying direction in sequence, a before-machining testing area is arranged on the machining platform on one side of the feeding and discharging area, a metal clip unlocking device and a three-claw unlocking device are arranged in the feeding and discharging area,a welding device is arranged in the welding area, and a testing device is arranged in the before-machining testing area. The valve-shaped metal part welding equipment can test the product precision again before machining, and ensure the finished product quality, the efficiency is high, and the stability is high.