Abstract: Strengthening R&D investment is an important means for enterprises to deal with risks and improve competitiveness, which is inseparable from government policy support and enterprise internal control. Based on the data of Shanghai and Shenzhen A-share listed enterprises from 2014 to 2018, this paper empirically analyzes the relationship among internal control, tax preference and enterprise R&D investment. The results show that tax preference and internal control can significantly promote R&D investment; Internal control positively regulates the relationship between tax preference and R&D investment; The nature of enterprise ownership, life cycle stage and the degree of industry competition will affect the regulatory effect of internal control on the relationship between tax preference and R&D investment.
