Based on financial institutions' major economic data for Sichuan bankingfrom 2003 to 2017，this paper uses historical data analysis method and correlation analysis method，taking credit data as the key tool，to analyze the main data indicators of Sichuan banking industry in 2018 and 2019，to forecast and test the GDP of Sichuan Province in 2018 and 2019. The conclusion proves that credit data is still the important predictor for economic growth，and the prediction on relevant data and indicators in this paper is nearly accurate.The accuracy of the prediction results of relevant data indicators is high，and based on this，relevant countermeasures and suggestions are put forward，including establishing a financial service system around “One Belt And One Road”，implementing targeted financial poverty alleviation，building a modern financial support system integrating military and civil affairs，and strengthening the prevention and control and monitoring of local financial risks.