Abstract:This paper selects Shanghai and Shenzhen A-share listed companies in China from 2009 to 2020 as research samples, and adopts multi-point DID model, parallel trend test and placebo test to investigate the impact of intellectual property insurance on corporate strategic radicalism, and then conducts heterogeneity analysis according to the classification of net profit, new investment expenditure and shareholding of institutional investors. Stepwise regression is also used to discuss the mediating effect of financing constraints. Empirical evidence shows that intellectual property insurance can improve the strategic radicalization degree of enterprises, and intellectual property insurance has a more significant impact on enterprises with more net profits, enterprises with more new investment expenditures, and enterprises with lower shareholding ratio of institutional investors. Further research shows that intellectual property insurance alleviates the financing constraint dilemma of enterprises to some extent, and then plays an intermediary role in influencing the strategic radicalization degree of enterprises.