Abstract: An air-compressing automotive jack apparatus simplifies the task of lifting and lowering a vehicle for repairs and maintenance by using an air compressor powered by the vehicle's battery. The apparatus includes a housing configured for positioning under a frame of a vehicle. An air compressor and a bag are coupled to the housing. The bag is operationally coupled to the air compressor wherein the air compressor is configured to supply air to the bag such that the bag is inflated when air is received. A handle extends outwardly from the housing and is operationally coupled to the air compressor wherein the air compressor is configured to deflate the bag when the handle is in a lowered position and inflate the bag when the handle is in a raised position. A pair of cables is coupled to the air compressor and configured for coupling to a power supply in the vehicle.