The utility model discloses a high efficiency alternating current -direct current mariages welding operation controller, including the controller, the back fixedly connected with backplate of controller, two the first spouts of axis for consulting the symmetry that use the backplate are offered, two in the inside of backplate the equal sliding connection in inside of first spout has first slider, the first spring of fixedly connected with between the lateral surface of first slider and the inner wall of first spout, two / bar through -hole has still been seted up at the back of backplate, and two bar through -holes communicate with two first spouts respectively. This high efficiency alternating current -direct current mariages welding operation controller is provided with the fixed block through the back at the backplate, and the fixed block passes through connecting rod and connecting block swing joint, can fix the support on wind tower with the controller through fixed block and backplate on, be provided with first spring through the inside at first spout, solved not convenient to use of the alternating current -direct current mariages welding operation controller that has now, influence work efficiency's problem.