This paper analyzes the problems of the main credit evaluation model and establishes an improved comprehensive evaluation model for C2C E-commerce credit. The improved model is based on the main indicators of the current credit evaluationt:product quality, logistics and service attitude, and comprehensively consideres the impact weights of various indicators. At the same time, it calculates the user' s credit with the counterparty creditworthiness number of transactions and transaction amount. For new users, it places the user' s level of so...