The invention discloses a starter coil bridge line welding positioning tool, which comprises a bottom plate, a double-rod cylinder, a rotary cylinder, a cylinder, a bearing, a welding mold device, an insulating device, a welding fixing device, and a welding device. The double-rod cylinder is fixedly connected to the bottom plate Above, the right end of the double-rod cylinder is fixed with the welding mold base plate 2, the welding mold base plate 2 is fixed with a welding mold fixing seat, the welding mold fixing seat fixes the cylinder, and a connecting screw is fixed outside the cylinder, the left end of the connecting screw rotates to connect with the rotary cylinder, and the right end of the connecting screw The bearing is fixedly connected, and the bearing is fixedly connected to the welding mold device. The welding mold device is provided with an insulating device at the welding interface and the outside of the welding mold device. A welding device is installed on the right side, and the present invention realizes precise positioning of coil position and bridge line position.