Abstract: The present paper collects a database of 10 cities in Jianghuai urban agglomeration from 2002 to 2012 and constructs a target system of financial agglomeration, financial diffusion and urbanization of population. By conducting financial agglomeration, Moran's I argued that cities in Jianghuai urban agglomeration have a spatial positive correlation relationship. Based on this, Spatial Lag Model and Spatial Error Model were constructed. The results indicate that financial agglomeration of Jianghuai urban agglomeration has a positive effect on urbanization of population. Besides, the positive effects become more and more apparent. Density of population and employees work in secondary and tertiary industry, playing as control variables, have a strong influence on urbanization of population.