Abstract:Clarifying the obstacles in the green innovation of SMEs plays an important role in the sustainable development of SMEs. On the basis of clarifying the connotation of green innovation, taking 270 small and medium-sized manufacturing enterprises in Zhejiang Province as the research object, the obstacles in green innovation of SMEs are divided into internal resources and capacity obstacles and external resource acquisition obstacles. The multiple regression results show that technical barriers are the main internal barriers in green innovation for SMEs, followed by financial barriers, management and human resources barriers; market barriers are the main external barriers for SMEs to carry out green innovation, followed by lack of government support and bad External partnership. The research conclusions provide practical enlightenment for the government to help SMEs overcome obstacles to green innovation.