Abstract:Credit construction is an important part of the construction of social credit system. Building the credit of the construction market is the core of the current mode of government supervision. The evaluation values at static time points are aggregated to get the dynamic comprehensive evaluation value by the idea of determining the time weight by laying stress on the present information than on the past to solve the problem that the period of credit rating cannot fully excavate historical credit information and reflect the trend of credit change. The research result can make up the shortage of static credit evaluation, and have certain reference value in process and afterwards of the supervision of the government departments.