This article will introduce principal components analysis and analytic hierarchy process into evaluation of industry development.Firstly, integrated numerous indicators, the principal component analysis model is used to analyze the monthly prosperity level of industry, which helps to understand the status of electricity.Secondly, analytic hierarchy process is used to build the index system for weight evaluation in industry, which is used to evaluate the developing situation in industry.Finally, in purpose of getting development situation of industry and the all industrial sectors, the prosperity level of industry in months, industrial integrated prosperity degrees and divided rules on industry types are built up.Results of this paper can be used for future industrial restructuring, energy conservation, development planning to provide decision making basis.