China's Listed Companies Publish Their Information

The behavior about information disclosure of the listed company will not only bring significant influence to investor' decision—making, but also affect the order of capital market. According to Market Efficient Theory,the essence of the securities market efficiency is an issue of information, which means that the process of improving the securities market efficiency is,in fact,a process of strengthening of the symmetry of information. Compared with the securities market with semi-strong efficiency in western developed countries, the securities market in China has a weak efficiency. I think that a important cause leading to low-efficiency of Chinese securities market is the problems which exist in the process of the information disclosure. The reasons of the problems are defects of listed company' corporate governance and securities supervision system.So,we should standardize the behaviors of the listed companies,improve its corporate governance ,as well as to improve the validity of supervisors and to enlarge the power of the community supervisors.This thesis begins with the information disclosure of the listed companies in our country. It studies the problems which exist in the process of the information disclosure, analyses the reasons why the problems appeared. Then it presents some measures and advices to solve the problems.