Credit data is highly correlated with GDP growth. Based on the analysis of the main economic data of Sichuan financial institutions during 2004-2018，this paper predicts the main data indicators of Sichuan Province in 2019 and 2020，and predicts and tests the GDP of Sichuan Province in 2019 and 2020. The conclusion proves that credit data is still an important factor for economic growth forecast. The accuracy of the prediction results of relevant data indicators is high. In order to further promote the development of banking industry in Sichuan Province，this paper proposes to strengthen the combination of industry and finance，further improve the financial service entity economic ability，improve the rural financial system，improve the financial support for rural revitalization，and strive to promote the coordinated financial development of the five zones.