The invention relates to a comprehensive power grid power supply quality evaluation method based on the perception of consumers, which relates to the field of power supply quality of power grids. At present, the real influence of power supply quality on consumers and perception cannot be objectively reflected. In combination with multi-source information, such as 95598 electricity consumer service, electricity consumer accounts and PMIS, on the basis of data-cleaned transaction worksheet data, the method sufficiently excavates a relation between the demand of electricity consumers and different factors related to power supply quality and influence degrees thereof, and extracts a power outage event set and an unqualified voltage event set by adopting the combination of pattern recognition and other methods; on the basis, all index data are calculated, and a comprehensive evaluation method, such as hierarchical analysis, is adopted to carry out power supply quality evaluation on a to-be-evaluated region. The technical solution objectively reflects the feeling of electricity consumers on the power supply quality of a power grid and service thereof, reflecting out weak points of the power supply quality of an evaluated region, and consequently, the method helps realizing the quantitative analysis of the perception information of consumers in terms of the power supply quality of thepower grid and service ability thereof and enriches conventional electricity consumer service evaluation systems.