The invention discloses a power-sold side market-oriented reform progress evaluation method based on fuzzy clustering. The power-sold side market-oriented reform progress is not evaluated and analyzed previously. According to the technical scheme adopted in the invention, firstly, based on domestic and foreign power reform historical experience, various indexes capable of comprehensively evaluating the power-sold side reform progress are selected objectively and reliably, the actual statistical data are gathered, and in combination of interval assignment and an expert scoring method, the index data are quantized; then, on the basis of thorough research on the domestic power reform progress and the foreign mature power reform experience, according to the internal logic of the domestic current power-sold market reform and the reform direction, in combination of characteristics of different stages in foreign countries and the domestic pilot reform condition, a power-sold side reform transition period is divided to three stages; and finally, a fuzzy C means clustering algorithm is used for power-sold side reform transition period progress evaluation. The fuzzy clustering mathematical analysis model is used for stage classification, and the power-sold side reform progress evaluation result is more reasonable.