Nowadays, more and more people would like to have the right to use rather than have the ownership. To reduce the risk, large platforms will take some measures and procedures through their trust and security systems, for example, they design for authentication, reputation mechanism, transaction security mechanisms and so on. On the other hand, small one is difficult to provide these tools, but to rely on self-marketing between the parties, looking forward to all of parties can control their own constraints. In order to let consumers use at ease, we need to construct adorable and suitable mechanisms for sharing economy. Responding to the rapid growth in recent years, we comparing the number of sharing economy industrial cases, besides, we rely on professional review websites to check their mechanisms. Our study discusses the elements in sharing economy reputational feedback mechanism design and establishment area, and hope to give some suggestions for the light of subsequent research value.