Objective: To discuss the impact of social health expenditure on the macro health level and its regional differences.Methods: Based on China’s provincial panel data from 2005 to 2014 in our 31 provinces, using sing the Fixed effects model、IV and GMM to perform empirical analysis.Results: social health expenditure could significantly promote the macro health level. The effect was strongest in western China,weaker in the central region and weakest in the east region, showing great difference among regions. Conclusion: government should implement various tax incentives,and encourage the development of health insurance and other forms to increase social health expenditure.