The horizontal vacuum annealing furnace is mainly composed of the furnace body, furnace tank, furnace cover, loading cart, push-pull cart, and electrical control cabinet. The furnace lining (insulation layer) is composed of full fiber cotton, and the furnace is built with refractory bricks, which increases the insulation performance of the furnace body while ensuring the strength of the furnace. The furnace body is welded from profiles and plates, with a walking wheel installed at the bottom and driven by a motor paired with a reducer to move the furnace body. The furnace tank is made of stainless steel material welded and fixed on one side of the trolley. There is a loading cart inside the furnace tank, and the feeding cart in and out of the furnace tank is completed by a push-pull cart. The sealing between the furnace tank and the furnace cover is made of rubber sealing rings, and a cooling water jacket is installed on the flange of the furnace tank to protect the rubber sealing ring. The opening of the furnace tank adopts a manual structure and is equipped with an explosion-proof device to prevent the possibility of gas thermal expansion and explosion during operation. In addition, there is a set of protective atmosphere inlet pipe, exhaust pipe, and vacuum pumping device (including vacuum pump, solenoid valve, vacuum pump). Tables and vacuum tubes, etc.