The article analyzes Sichuan banking financial institutions’ major economic data from 2003 to 2015，using the method of historical data analysis and correlation analysis. Then predicts and inspects the Sichuan banking’s main economic indicators in 2016 and 2017，basing on the assumption of good stability credit growth. After that，taking the conversion rate for the hypothesis，forecasts and inspects Sichuan regional gross domestic product in the year of 2016 and 2017 in the terms of correlation and conversion rate between credit growth and regional economic growth.