Abstract: Population and economic are the two main indicators of regional differences and their spatial distribution is closely related to the formation of regional disparities. With the change of development environmental and development pattern about the Yangtze River Delta in recent years, this article makes an in-depth temporal and spatial study on the inequality pattern of population and economic in the Yangtze River Delta by combining inconsistent index, center of gravity method and imbalance index, and the empirical analysis of the influencing factors based on the panel data regression from 2000 to 2015 was carried out. The results show that regional disparities still dominate the development pattern, with the change of the pattern of population and economy brought about by the change of regional development pattern, the overall imbalance of regional population and economy is weakened, and the regional inequality pattern about population and economy in the Yangtze River Delta is relatively stable. Then, we analyse the affecting factors of population and economic inconsistent index in different periods from the analysis of urban development, market and government in different periods, the results show that there are differences in factors of population and economic inconsistent index in different periods. As the impact of urban development always plays an important role, market forces become more significant and government influences become weakened.
