The purpose of this article is to screen out the most important factors among many factors that affect China’s economic growth. Based on literature review and relevant financial theoretical knowledge, China’s economic growth factors are selected from international and domestic aspects. Four methods, including least-squares estimation, stepwise regression, ridge regression estima-tion, and Lasso regression, are used to screen and optimize 12 variables and analyze the influence degree empirically. The study found that consumption levels and the development of the tertiary industry have a significant role in promoting China’s economic growth; also financial development and industrialization promotes China’s economic growth but it was in a gradual state.
