Push back pallet rack is designed to multiple layers trolley connected with the front and the rear beam. The pallet or pallet box is put on the trolley from outside, and the subsequent pallet will push the prior one to inside. The trolley crosses on the slanted guide rail. When the outer pallet is taken away, the inside trolley will slide down automatically. Push back pallet rack is suitable for storing goods of large quantity but small variety, the operation principle is FILO. Storing and taking goods are in the same side.