Abstract: This paper selects the empirical data of China's A-share manufacturing listed companies from 2013 to 2018, and uses regression analysis to test the impact of earnings management on the relationship between financing constraints and corporate technological innovation. The results show that listed manufacturing companies in China have significant R&D investment-cash flow sensitivity and companies are facing external financing constraints; Earnings management has a significant positive effect on corporate technological innovation; Financing constraint has a significant mediating effect in the relationship between earnings management and technological innovation; After further analysis of ownership nature and scale factors, it is found that earnings management has a more obvious easing effect on private manufacturing enterprises' R&D financing constraints, and is more conducive to alleviating the financing difficulties faced by small and medium-sized manufacturing enterprises.

Key words: technological innovation, earnings management, financing constraints, intermediary effect, regulatory effect