The invention discloses a power market registration information evaluation management method and platform. According to the method, elements related to power market registration information evaluationdecisions are decomposed into levels such as a target, a criterion and a scheme by using an analytic hierarchy process, and a power registration information evaluation level range is determined. Qualitative and quantitative analysis is carried out on specific cases on the basis, and tracking evaluation is carried out on various internal environment and external environment data during registration and registered content changes of the internal environment and the external environment of the registered enterprise to obtain the credit rating of the enterprise. Therefore, risks of risk prevention and control of registered users in the power market can be followed and presented in the form of a platform, differentiated reward and punishment measures based on the power credit rating can be implemented conveniently, risks can be effectively prevented internally, high-quality customers can be mined, and power credit value output can be realized externally.