According to 1994 ~ 2008 annual calendar adverse index in direct taxation revenue and estimate the proportion of time series data, the empirical analysis shows that the current tax policy and not shrink direct tax income gap of residents in a certain extent, even aggravate the income gap, suggest the experience abroad and in combination with the reality of our country, and on the basis of increasing personal income tax, to improve the supervision of the tax collection and management, to improve the effectiveness of the third party information report system, to establish and perfect the system of tax collection, the reverse of high-income people of