To change energy construction in the backward areas and protect the ecological construction achievements of conversion of cropland to forest, China starts the small hydropower station for fuel project, which has promoted the local social development. To evaluate the influence of the small hydropower station for fuel project on social development in the backward areas, this paper has a comprehensive consideration of the social environment and ecological environment, establishes the relative evaluation index system about influence, introduces the normal cloud model, focusing on the association of fuzzy and random problems in the artificial intelligence, into the evaluation model, and establishes a comprehensive evaluation model based on the normal cloud model and composite entropy weight. Taking the pilot Majiang County of Guizhou Province as an example, this paper evaluates the influence of the small hydropower station for fuel project on social development in the backward areas, and the results are made that the small hydropower station for fuel project has played a role in promoting the social development, and with the implement of the project, the effects become more and more obvious.