本文首先分析了我国上市公司的股权结构，并分析了在这种特殊的股权结构下，内部治理机制和外部公司治理机制存在的缺陷。最后提出通过提高机构投资者的持股比例，优化上市公司股权结构，从而改善其治理结构。

This paper analyses the ownership structure of Chinese listed companies. It also analyses the problems that the internal and external control mechanisms have under such a special ownership structure. Finally, this paper suggests that the institutional investors in Chinese listed companies should be developed greatly, which will improve the ownership structure and the governance structure of the companies.