On the basis of the above-mentioned relevant literature and the general analysis of economic growth theory, this chapter focuses on the contribution of urbanization to China's potential economic growth, that is, the city under the hypothesis of positive impact of urbanization on China's potential economic growth How to drive the potential economic growth factors by urbanization, and through the labor flow driven urban and rural two sector model, the cumulative effect and comprehensive effect of the factors caused by labor flow are produced, and finally the theoretical model of urbanization driven potential economic growth is constructed.