China is using many policies to bridge the growth gap between regions along with continuous economic growth, the development of the financial industry has emerged as a very important task, and the demand for the development of the financial industry has continued to increase since the introduction of the market economy. Moreover, for China, which has a large land area and a very large economy in each region, regional economic analysis is needed. herefore, this study measured China's regional financial development index using the financial development index released by the IMF and estimated the relationship between China's regional financial development index and regional economic growth. The Granger causal relationship model was used to estimate the correlation between China's regional financial development index and economic growth between regions, and the analysis showed that in China, personal and corporate loans had a causal relationship with economic growth in terms of financial depth, there was no causal relationship with economic growth in access to financial institutions, and there was a causal relationship between financial industry efficiency and economic growth.