Abstract:Based on the summarizing and analyzing the literatures on studying the urban-rural income gap, the paper does an empirical study on the influencing factors of the urbanrural income gap in Shaanxi province under frame of dual economy, by using the data from 1985-2006 and the dual model established by Chen Zongsheng and Li Defu for reference. The results show that the urban-rural dual coefficient, the distribution coefficient and the lagged urbanization, which widen the income gap between urban and rural areas, have significant effect on the urban-rural income gap in Shaanxi province.