The convergence of industrial green innovation exists the regional heterogeneity and spatial convergence underthe unbalanced development of China's provincial internal openness. By constructing evaluation index system of internal openness and using combined evaluation method on 30provincial internal openness to establish a comprehensive evaluation, and through some coefficient variation indexes to compare internal openness of different provincial regions, we use provincial panel data from 2005 to 2014 to establish a spatial econometric model to test the space convergence of industrial green innovation under internal openness constraints. We Find that China's provincial internal openness shows the development characteristics of increase to decrease in the time dimension, while the spatial dimension has the heterogeneity characteristics of east-high-west. The eastern region has the largest difference in internal openness, and followed by the west, the smallest in the middle. Degree of dispersion of industrial green innovation of China and its eastern region will change over time, while the industrial green innovation of its mid and west regions fluctuates. Therefore, these regions still need further improvement. Industrial green innovation of China and its three regions will achieve long-term equilibrium, and due to the similarities of economic development, technical environment, R & D level in adjacent areas, so there is a long term convergence. Above all, we conclude that it is an important factor to promote the improvement of industrial green innovation ability in the whole and eastern region of China. Improving the level of economic development and the appropriate environmental control intensity are important factors to promote the improvement of industrial green innovation in the central and western regions. To reveal the regional heterogeneity source of spatial convergence and the industrial green innovation under the constraint of China's provincial internal openness. It is very helpful for our country to narrow the gap between provinces and regions in the new era and accelerate the opening up to the inside, further improve the industrial green innovation ability.