Abstract:Construction of innovative cities is an important way to realize sustainable development.This paper constructs a complete index system to measure innovation level. The influence of innovation on urban economic development is remeasured by adding innovation scores to the improved Solow model, and it is proved that endogenous innovation progress is the source for the constant growth of national or regional economy.Furthermore,the urban economic development potential is predicted by innovation score for the first time.The following conclusions can be drown : the innovation potential of the first and second-class cities is much greater than that of the third-class cities.For urban individuals, Chongqing has the most added value of GDP and Xining has the biggest growth rate of GDP after upgrading the level of innovation.This conclusion is of great significance to the strategic of urban innovation.