The energy efficiency analysis and evaluation for airline enterprises is the key content to ensure the effectiveness of energy efficiency optimization. With the principle of combining qualitative with quantitative, the comprehensive evaluation indicators system for energy efficiency of airline enterprises was established based on the analysis of the measured indicators and the influenced factors of energy efficiency. The combination weights of evaluation indicators were confirmed by analytic hierarchy process and information entropy. The comprehensive evaluation method was put forward based on grey weight correlation, and the energy efficiency development trend of airline enterprises was analyzed and evaluated by quantitative method. The case analysis show that the comprehensive evaluation for energy efficiency of airline enterprises is more objective to reflect the real situation of enterprise energy efficiency development, and the comprehensive evaluation method based on grey weight correlation is simple, scientific and practical for multi-objective decision making questions.