Based on the dynamic monitoring data of the national floating population, this paper studies income gap between China' s urban and rural residents. The results show that there is a typical fact that the income of the urban resident is higher than that of the rural; Through OLS regression estimate the Mincer income equation, it is found that resident' s personal feature, human capital accumulation and employment characteristics have significant impact on the resident income; Using blinder-oaxaca method decompose the income gap, we can see that...