Abstract:Based on the data of China"s regional industrial enterprises, the stochastic frontier model is used to explore the impact of different ways of government R D funding on enterprise innovation efficiency under open innovation. The results show that: direct government funding promotes the efficiency of new product output-oriented innovation, while the effect of government tax incentives is not significant, and open innovation has a significant moderating effect on the relationship between government direct funding and innovation efficiency; government direct funding The effect of improving patent output-oriented innovation efficiency has regional limitations, and in areas where state-owned enterprises account for relatively low proportions, the impact of government direct funding on innovation efficiency weakens as the level of open innovation increases. The research conclusions provide reference suggestions for improving innovation efficiency.