目的 促进快递包装的重复利用，提高废弃快递包装的回收率，从源头改善快递包装的浪费和对环境的污染，在不影响产品保护的同时推动绿色包装的发展。方法 深入分析当前快递包装回收业务中存在的问题，探索如何应用可拆卸设计方法对快递包装箱的结构进行设计，研究如何对快递包装箱进行伸缩调节，以适应不同产品的运输要求，并优化拆卸、更换和组装的工序，摒除当前包装整体废弃的弊端，实现局部回收，提高快递包装的利用率。结果 该可拆卸包装箱在组装、开启、拆卸、收纳等过程中操作方便，在实操测试中用较短的时间即可完成上述工序，并在抗摔测试中能经受住装载与运输过程中的外力碰撞，能对产品起到良好的保护作用。结论 利用可拆卸设计方法对快递包装箱进行结构设计，能方便地对损坏的包装部件进行更换，能有效减少包装废弃物的产生，具有便利性、兼容性与安全性，有利于建立高效通畅的回收与再用系统，减少对资源的浪费和环境的污染，在生态保护与绿色发展等方面具有积极的意义。

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.