The invention provides a power grid power obtaining index comprehensive evaluation method. The comprehensive evaluation method comprises the following specific steps: S1, obtaining power customer business expansion and power supply quality related data corresponding to a service area from a power system or through research; S2, cleaning the obtained data, and extracting data related to evaluation;S3, constructing a comprehensive evaluation system for power obtaining indexes, and calculating specific numerical values of the evaluation indexes in combination with the data set extracted after cleaning in the step S2; and S4, finally calculating a comprehensive score of each to-be-evaluated region, and evaluating the 'power obtaining' level of the to-be-evaluated region. According to the invention, differentiated management of clients, formulation of differentiated evaluation standards and development of targeted marketing strategies are facilitated, service risks are prevented, businesslinks with problems are found by evaluating focusing problems and weakness, the problems are solved in a targeted manner, the business environment is continuously optimized, and the power supply service level is improved.