The evaluation index system for construction efficiency of green small rural hydropower in China is established from the four dimensions of ecology, society, management and economy. The construction efficiency of green small rural hydropower is objectively and quantitatively investigated by using the fuzzy comprehensive evaluation(FCE)method based on the weights of various indices determined by the entropy method and the analytic hierarchy process(AHP). Finally, the proposed model is applied to the example of Huangcheng Hydropower Station in Gansu Province. The results show that the green construction performance of Huangcheng Hydropower Station is good and its deficiencies are also analyzed so as to provide ideas and methods for the development of green small rural hydropower in China.