The invention discloses a storage method for reducing floor space occupation through top layer placement of weights. The method comprises the steps that all prepared weights are preset and stored at the top layer of a multi-storey storage yard; one end of a cable is connected with a weight lifting platform, and the other end of the cable is connected with a cargo or the vehicle lifting platform; the cargo or the vehicle lifting platform carries goods or vehicles and can transfer goods or vehicles; the weight lifting platform carries the prepared weights and can increase or decrease adjustmentof the weight; and the vehicle lifts a layer through a truck or the vehicle lifting platform, and the prepared weight correspondingly lowers a layer through the weight lifting platform. According to the storage method for reducing floor space occupation through top layer placement of weights, the energy-saving effect in the lifting process is remarkable, and the storage of the weight does not occupy any ground position space.