Abstract:Technological M As are already in full swing in the GEM market, in which the listed companies is particularly keen on conducting M As for epitaxial growth. This paper focuses on the impact of technological M A on technological innovation of the listed companies on the GEM, and has carried on the theoretical analysis and put forward the research hypothesis aiming to explore whether there is a complementary relationship between technological M A and innovation investment, and its impact on innovation output. At the same time, we investigate the moderating effect of technological absorptive capacity, technical relevance, knowledge scale and technology integration, in order to provide guidance for the development of the listed companies on the GEM.