目的 针对集装箱供需矛盾的日益突出，以及空重箱长期独立运输等问题，研究空重箱的协同运输过程，以减少运输资源的浪费。方法 在使用折叠式集装箱的情况下，为实现门到门的高效服务，以运输公司总利润最大为目标，建立空重箱协同运输优化模型，并通过LINGO建模求解具体算例。结果 通过算例分析，验证了模型的可行性，并与是否使用折叠式集装箱、是否考虑空重箱协同运输等多种模式进行对比。结果发现，在一定条件下相对于传统的运输模式，平均运力利用率提高了15.23%。结论 验证了使用折叠式集装箱的空重箱协同运输的经济效益高于其他运输模式。

The work aims to study the collaborative transportation process of empty and loaded containers to decrease the waste of transportation resources, in view of the increasingly prominent contradiction between the supply and demand of containers and the long-term independent transportation of empty and loaded containers. In the case of using foldable containers, with the maximum profits of the transportation company as the objective, a collaborative transportation optimization model for empty and loaded containers was established in order to achieve efficient door-to-door service. The specific example was solved by LINGO modeling. Through the example analysis, the feasibility of the model was verified. It was also compared with whether or not to use foldable containers, whether or not to consider the collaborative transportation of empty and loaded containers and other modes. The result showed that the average capacity utilization rate increased by 15.23% under certain conditions compared with the traditional transportation mode. It is verified that the economic benefits of collaborative transportation of empty and loaded containers with foldable containers are higher than other transportation modes.