文章指出企业在进行供应链下游中间商规模和结构设计时应该以产品生命周期的不同阶段市场经营目标为导向。分析了产品生命周期不同阶段对中间商规模和结构需求,并给出了成长期中间商规模与结构设计模型、成熟期中间商规模与结构设计模型和衰退期中间商规模与结构设计模型,最后通过案例证明不同目标导向下中间商规模与结构设计模型的有效性。 The article points out that in the process of designing the scale and structure of the middleman in the supply chain, the enterprises should be guided by the target of market management at different stages of the product life cycle. The scale and structure design of intermediaries in different stages of the product life cycle are analyzed. The scale and structure design model of the intermediaries in the growth stage, the scale and structure design model of mature intermediaries and the scale and structure design model of the intermediaries in the recession period are given. Finally, The effectiveness of different goal-oriented model of intermediary scale and structure design is proved by case studies.