If a man worked in the power of the government department or professional type to associate with government departments, so the accumulation of past relationships can become political capital for own use, makes it easy to obtain high income industry access permission or position. Thus we think if we had working experience in party and government organs institution, is thought to have high political capital. To illustrate the party membership by political capital rather than personal ability to influence income, this paper to control the variables and technical titles of personal ability, at the same time this paper argues that identity is the embodiment of the political consciousness of party members, and has no direct relationship between the individual ability, therefore, in addition to the class level position and unit type, political identity can be used as a measure of another indicator of political capital. About political capital on the impact of personal income has made basic unified conclusion, in the labor market, political capital has increase employment opportunities, increase their income. Studies of political capital on the income gap are limited in the monopoly industries and monopoly industries, coastal and inland areas of the income gap discussion (li, 2007; li Ming, Li Huizhong, 2010; zhao wei, 1999), or to emphasize political capital as industry into the high income or get high income post barriers have the effect of the widening income gap (Chen Zhao Liu Ming, 2009), and there is no emphasis on the relationship between the political capital and income distribution, namely how to trigger the formation of the income gap. Compared with the existing political capital income differences affect a large number of research literature, in this paper, the human capital, family background and gender, region and so on has carried on the comprehensive control, to a certain extent, reduce the political capital coefficient estimates due to the influence of some factors in the possible deviation; In addition, we tried to use the quantile regression analysis method to discuss the distribution feature of political capital and income distribution between political capital change trend in different quantiles income changes caused by the different characteristics of income and policy implications are completely different