Abstract:By using the meta-analysis method to analyze 107 relevant research papers on the internal and external influencing factors and mechanisms of enterprise investment in scientific and technological innovation at home and abroad, obtained the following conclusions: government subsidies, increase in enterprise scale, and the provision of equity incentives will significantly promote enterprise innovation investment; The increase of enterprise age will promote enterprise innovation investment to a certain extent, but it is not significant. Equity concentration and industry concentration are negatively correlated with enterprise innovation investment. Based on these conclusions, four suggestions are put forward from the two aspects of policy and enterprise management: (1) the government should introduce policies to encourage the central and local governments to invest in scientific and technological research and development; (2) the government should introduce a market competition mechanism to improve the efficiency of resource allocation; (3) Enterprises should expand their scale and extend their operating hours to obtain more resources and enhance their innovation capabilities; (4) Enterprises should optimize the corporate governance system, reduce the concentration of equity, and provide equity incentives.