Abstract: An aluminum alloy vacuum casting equipment comprises a high pressure casting tank, in which a guard is equipped. The high-pressure casting tank is connected with a booster jar through a compressed air pipe. A first casting window and second casting window which are equipped with a first cylinder are set at top of the high-pressure casting tank. The high pressure casting tank is also equipped with a fixed guide and an unfixed guide at the bottom, an actuated exhaust ball valve at one side and a hatch door which is connected with a third cylinder. All operations except for putting in or taking out of the filler are completed automatically.