Taking the Yangtze River Economic Belt for example,this paper analyzes the counter-urbanization trend of population spatial distribution in different city groups as well as inside cities,and its influencing factors by applying the ROXY index and PLS-SEM model.The results show that in the middle and lower reaches of the Yangtze River,the phenomenon of"counter-urbanization"in which the population spreads from the central city to the periphery appears in cities including Shanghai,Wuhan,Nanjing,Chengdu,Hefei,Nanchang and Changsha.The influencing fa...