Abstract: With the pursuit of green consumption patterns, the green transformation of companies is speeding up, and the problem of corporate green degree evaluation gradually arouses academic attention. This paper constructed the corporate green degree evaluation index system by selectingthe five aspects of corporate green technology, corporate green production, corporate green emission, corporate green investment, green corporate culture, and using the AHP and standard deviation to determine the combination weight of index system, and to buildthe corporate green degree evaluation model based on the extenics principle. An empirical evaluation was conducted in combination with the development of Yunnan Biological Technology Co. from 2008 to 2012. The results show that in the company from 2008 to 2012, most of the green indicators had greatly improved, being elevated to Level 1, indicating that the company emphasized increasingly on the green development model and achieved good results on the whole, and the paper also makes a detailed analysis of the changes in green business, not only to provide guidance for future green development decision-making, but also to provide a theoretical reference for the evaluation of corporate green degree.

Key words: corporate green degree, the extenics evaluation model, AHP, standard deviation