Dividend policy reflects the listed companies operating results and behavior, but also the external image of the company have a certain impact. This paper constructs the relationship between cash dividend policy and corporate value of listed companies in China, and makes an empirical analysis using the data of 135 listed financial companies in China from 2016 to 2018. The results show that the payment of cash dividends will lead to the improvement of corporate value and the payment of cash dividends in relation to the value of the firm. At the same time, the cash dividend payout ratio of the firm is positively correlated with its value and shows the inverted U-type relationship. Finally, on the basis of summarizing the research results, some concrete suggestions are put forward for how to set up the dividend policy of China's financial listed companies to improve their own value : first, to improve the profitability of financial listed companies, The second is to appropriately increase the level of dividend payment, and the third is to ensure the strict implementation of the dividend distribution system by legislation.