The separation of interests in shareholders has been intrinsically attributed by the equity dissevering which is a historical institutional defect The situation contributes a series of interest subject's distorted behaviors on the modes of implementing interests, the means of chasing profits, and the ways of controlling companies, and so on. As a factor resulting in the benefits loss of the main shareholder group of float share, the distorted behaviors impact the stability of stock market, and make it difficult to bring the integrated resource function of capital market into play. As a result, Chinese stock market must solve the problem of equity dissevering that is a profoundly institutional problem, and implement the total circulation of the stock in order to actualize the sound development of the stock market