Abstract: This paper uses SBM directional distance function and Malmquist-Luenberger index approach to measure green TFP of China's major cities, and analyzes the influence factors. We apply SDM to analyze the spillover of urban green TFP and its influencing factors. The major conclusions are as follows:Green TFP growth is mainly composed the contribution of frontier technology progress, environmental technology efficiency improve relative lag. Green TFP shows that 66 city's differences in China, but there's a space overflow effects. Human capital has both spatial and local spillover effect on green TFP growth, while R&D only has spatial effect on green TFP and the local effect is insignificant.

Key words: green TFP, directional distance function, SDM, spatial spillover