The paper, based on the samples of 2003, makes empirical analyses of China listed companies from the perspective of Chinese Corporate Governance Index ( ) and its six dimensions: the index of controlling shareholders’ behaviors, board governance index, top management governance index, information disclosure index, stakeholders’ governance index, supervisors committee governance index, and find that is positively associated with return on assets (ROA), net assets per share (NAPS), earnings per share (EPS), operating cash flow per share (OCFPS), total assets turnover (TAV), rate of total assets growth (ITA) and Z-score. These indicate that good corporate governance mechanisms improve profitability, stock expansion ability, operating efficiency, growth and development potential, as well as financial flexibility and safety of listed companies. Corporate governance mechanisms of controlling shareholders, board of directors, top management, information disclosure, stakeholders and supervisors committee are largely responsible for decision-making and decision-execution mechanisms, and furthermore, they have direct and profound effects on the performance and value of listed companies.