信任是良好社会秩序的重要基础,也是建设和谐社会的重要方面。本文简单地分析了信任的形式、作用。在此基础上提出了信任能够大大节约社会运营成本的观点。然后着重从影响信任机制的主要因素、信任机制的变迁、信任机制下的个体博弈、市场竞争所导致的信任成本等几个方面,对社会信任机制的成本进行了分析。 Trust is an important foundation for good social order and an important aspect of building a harmonious society. This article simply analyzes the form and function of trust. On this basis, we put forward the viewpoint that trust can greatly save social operating costs. Then, the author analyzes the cost of social trust mechanism from the following aspects: the main factors that affect the trust mechanism, the transition of trust mechanism, the individual game under the trust mechanism and the trust cost caused by market competition.