The work aim to promote the reuse of express packaging, improve the recovery rate of waste express packaging, improve the waste and reduce the pollution of express packaging from the source, and promote the development of green packaging without affecting product protection.The problems existing in the current express packaging recycling business were analyzed in-depth. The ways to use the removable design method to design the structure of the express packaging box were explored. The means to adjust its expansion and contraction to meet the transportation requirements of different products were studied. The disassembly, replacement and assembly processes were optimized to get rid of the disadvantages of the current overall waste of packaging, realize local recycling, and improve the utilization of express packaging.The removable packaging box was easy to operate in the process of assembly, opening, disassembly and storage. The above processes can be completed in a short time in the practical test, and can withstand the external force collision in the actual loading and transportation process in the fall resistance test, so as to provide good protection for the products.The use of removable design method to design the structure of express packaging box can easily replace the damaged packaging parts and effectively reduce the generation of packaging waste. This method has convenience, compatibility and safety, and is also conducive to the establishment of an efficient and unobstructed recycling and reuse system. It can reduce the waste of resources and environmental pollution, and has positive significance in ecological protection and green development.