Environmental credit evaluation of enterprises is an important part of China's environmental protection research. Based on China's "Enterprise Environmental Credit Evaluation Method (Trial)", in view of the current subjective evaluation of corporate environmental assessment methods, innovative use of data envelopment analysis (DEA) method to evaluate corporate environmental behavior, built the enterprise environment Behavioral evaluation indicator. The empirical analysis of Haier's relevant data shows that the environmental behavior of the company is still fluctuating but generally better, and then proposes corresponding improvement suggestions, which provides theoretical basis and practical basis for relevant research.