Abstract:The results of this empirical study show that financial subsidies for science and technology projects have improved the comprehensive capacity of high-tech enterprises for high-quality development by improving enterprises' innovation capacity.Technological research projects and science and technology innovation talents projects contribute the most to the innovation capacity of high-tech enterprises. Subsidies for projects combining science and technology with finance, and inclusive tax relief policy have significantly enhanced the comprehensive capacity of high quality development of high-tech enterprises. On the whole, the overall score of the High-tech Enterprise Quality Development Index has been steadily increasing year on year due to the empowering effect of science and technology innovation policies, and the year-on-year growth rate of the Innovation Capability Index of high-tech enterprises is significantly higher than that of their profitability and operational growth capability.