In order to solve the existing in current e-commerce credit problems of e-commerce and the huge influence of the customs office, according to industry experience, credit rating of evaluation, in many industries through summary of domestic and international credit rating method and evaluation model based on the theory of ", according to "the 5 cs, according to the different industries and evaluation system, and rating, by changing process configuration, including enterprise declare content configuration, evaluation index system configuration and functional configuration, can generate for industry characteristics of credit rating models and methods, and established based on configuration of industry credit rating system ICRS. And the application of this system in all aspects of electronic commerce, the credit crisis for electronic commerce provides important theoretical foundation and effective solutions.