Electricity selling company credit evaluation method, system, device and medium

The invention relates to the technical field of power data processing, in particular to an electricity selling company credit evaluation method, system and device and a medium. The method comprises the following steps: firstly, establishing an electricity selling company credit evaluation index, and defining a scoring function according to expert experience to obtain an electricity selling company credit preliminary scoring result; secondly, a judgment matrix is constructed, an analytic hierarchy process is called to construct a quasi-optimal consistency matrix, and subjective weights of indexes are calculated; establishing a credit evaluation observation matrix, and calling an entropy weight method to calculate objective weights of the indexes; then, a game theory combination weight method is called to combine the subjective weight of the empowerment index and the objective weight of the index, and a combination weight is obtained; and finally, according to the combination weight, carrying out weighted combi