| With the increasingly severe environmental problems, internal and external information users pay more and more attention on environmental accounting information, they want to be able to take advantage of corporate environmental accounting information to make an assessment of operating performance, to help to make decision on investment and credit. As the most direct way for internal and external information users to understand the environmental information, environmental accounting information disclosure is an act that accounting entity provide environental accounting information by various ways or means for information users, the goal is to provide information users relevant environmental accounting information to help users make the relevant decisions. Therefore, corporate environmental accounting information disclosure quality determines user can make the right decisions or not. So, to study how to improve the quality of environmental accounting information disclosure for information users to make the right decisions, for enhancing the competitiveness of the pharmaceutical industry has an important significance.The pharmaceutical industry is a very special industry, on one hand, the vital interests of the pharmaceutical industry is related to every one of the people and people’s lives, widespread social concern; on the other hand, the pharmaceutical industry is one of the heavy polluting industries producing adverse effects on the environment. Therefore, the pharmaceutical industry environmental accounting information disclosure has been paid more and more attention. Information users urgently require companies to disclose higher quality environmental accounting information to make the right decisions for the user. This will not only increase the value of the company’s products and services, but also to enhance their social image, is conducive to the sustainable development of the pharmaceutical industry.On the decision-useful concept, paper analyze the quality characteristics on environmental accounting information, and the reasons of low environmental accounting information disclosure quality in the pharmaceutical industry. The results show that: ①the stronger corporate profitability, the higher the quality of disclosure of environmental accounting information; the larger financial leverage, the higher the quality of environmental accounting information disclosure; ②because the interests of minority shareholders is difficult to protect, a major shareholder seek to maximize their own interests, while making environmental accounting information disclosure quality degrades; the supervisory role of the independent directors did not give full play, with no significant relationship with the quality of environmental accounting information disclosure; ③ due to government and public supervision pressure, state-owned shares and outstanding shares of the larger enterprises tend to disclose more information about the quality of environmental accounting. Given the results of this analysis, we propose policy recommendations aimed at improving the quality of the environmental accounting information disclosure in pharmaceutical industry, in order to make decisions on the information users to make better use of environmental accounting information to achieve sustainable development. |