Abstract: Green total factor productivity(GTFP)is the key to realize green economic and environmental win-win development. Applies Malmquist-Luenberger index of directional distance function to measure green total factor productivity and its components of China's 30 provinces and two areas, three areas and four areas over the period 2000-2014 while taking into account the factors of energy consumption and environmental pollution. The result shows that the GTFP has an average annual growth rate of 1.3% and the green technical progress is the main source. The GTFP has larger difference at the provincial level and the provinces of fastest growth rate have Tianjin, Shanghai, Beijing, Jiangsu and Zhejiang. The regional green economic growth shows significant heterogeneity in different space scale selection criteria.

Key words: green total factor productivity, regional green economy, regional heterogeneity, Malmquist-Luenberger index