The invention discloses a motor-vehicle four-parking-space underground garage adopting non-center-shaft hollow gear transmission, and belongs to the technical field of mechanical manufacture and automobile industry. Along with the rapid development of the automobile industry and the continuous progress of urbanization process, cars have become the main means of transportation for more people, for car storage space of a small unit or a family, especially for a small garage of a big villa, garage space is limited, parking spaces for one or two cars cannot meet requirements. In the exposed part of the motor-vehicle four-parking-space underground garage adopting non-center-shaft hollow gear transmission, four sets of suspended baskets are mounted at the periphery of two symmetrical non-center-shaft hollow gears in a evenly distributed mode wherein parked cars can enter and exit from the suspended baskets; the cars can pass through the middle of the non-center-shaft hollow gears to enter the suspended baskets to be parked, through barrier-free rotating of the two symmetrical non-center-shaft hollow gears, the four suspended baskets enter the underground alternately, four-motor-vehicle parking of one garage is achieved.