| Earnings information is the important financial information of listed companies. Earnings information affects not only whether the company allots the shares, and has also become an important factor to affect stock prices. As the development of China's capital market, Earnings Management has become a hot topic. A lot of listed company made use of imperfect policy and law to adjust their profits. This has become the normal way for listed companies to control their profits. This is one of the important reasons for accounting information distortion. The well-known fraud cases like "Enron" in abroad and "Yinguangxia" & "Tin Company" in domestic est. were all focus on earnings. That is because earnings information of listed companies is the core content of their annual reports, while the stock market participants are very concerned about the profitability of enterprises. Therefore, the research on Earnings Management of listed companies has great significances both in theoretically and practically.Here we start the research from the meaning of Earnings Management, and sum up the type of Earnings Management, then, we analyze the motivations and conditions of the Earnings Management. Through economic theory, accounting theory and behavior theory etc., we discuss the theory basic of Earnings Management. Then, by analyzing the affections to earnings management before and after the Application of new accounting standards, and with the current situation of listed companies in our country, we make a theory and demonstration study in this paper. After that we find that the new accounting standards have different affections to earnings management in different industry companies. According to these different affections, we try to give some suggestions in policy.In this paper, with both specification and demonstration research methods, we make a demonstration study in sample data of listed companies under the new accounting standards system. So, we can believe that:first of all, the earnings management of listed company, such as the sample companies, are affected by the new accounting standards; Second, the affections to earnings management are different among different industries. At last, according to the differences of the sample data, we give some policy suggestion:Improve the corporate governance structure, improve the accounting model, improve the information disclosure and strength auditing and supervision. |