Abstract: The urban green development level measurement system is established，and Jiangxi urban green development level during the period of 2011-2018 is dynamically measured and its spatial and temporal evolution characteristics are analyzed based on “vertical and horizontal” pull-off method，exploratory spatial data analysis method，convergence analysis method and so on. The complex multi-factors that influence the green development of urban is taken as a research perspective，and the network topology Tobit model of Jiangxi urban green development level covering environmental regulation，technological innovation，governance transformation，external openness，human capital and industrial agglomeration is constructed. Results show that，firstly，the overall green development level of the urban in Jiangxi has steadily increased. The resource environment and the economy development are respectively the dominant guarantee and the key weakness of the green development level of the urban in Jiangxi. The green development level of the urban in the Great Nanchang Metropolitan Area has relatively significant feature of descending gradient distribution. Secondly，the urban green development level had spatial negative correlation，which has been decreased. Nanchang has been significantly becoming a hot-spot. Jiangxi urban green development level has significant trend of absolute convergence in the long term. Thirdly，the environmental regulation，technological innovation，transformation of governance，openness to the outside world，human capital and industrial agglomeration degree have shown different significant impacts on the green development level of the urban in Jiangxi. The Porter Hypothesis is verified.