Based on the regional and industry panel data from 2005 to 2017，the location quotient，the spatial Gini coefficient and the Super-SBM model with undesired output are used to measure the concentration level and green innovation efficiency of the equipment manufacturing industry in the Yangtze River Economic Belt. The threshold panel model analyzes the impact of the concentration of equipment manufacturing industry in the Yangtze River Economic Belt on the efficiency of green innovation. The research results show that the equipment manufacturing industry agglomeration and green innovation efficiency in the Yangtze River Economic Belt show the spatial and industrial differentiation characteristics. The horizontal concentration of industrial agglomeration in the upper，middle and lower reaches increases. The concentration of transportation equipment and equipment manufacturing industry and special equipment manufacturing industry Low，green innovation efficiency loss stems from redundant input and undesired output redundancy；there is a significant N-type relationship between equipment manufacturing agglomeration and green innovation efficiency in the middle and lower reaches，and the upstream equipment manufacturing agglomeration and green innovation efficiency are significantly negative. Type relationship. Economic growth，R&D intensity，and energy consumption is positively related to the green innovation efficiency of the equipment manufacturing industry. The opening up，urbanization rate，and environmental regulation is negatively related to the green innovation efficiency of the equipment manufacturing industry. To improve the quality of the equipment manufacturing industry in the Yangtze River Economic Belt，we should increase investment in research and development and enhance the capacity for independent innovation to promote the green development of the equipment manufacturing industry.