The paper analyzes major economic data from Sichuan’s banking financial institutions from 2003 to 2013，using the method of historical data analysis and correlation analysis. It predicts and inspects the Sichuan banking’s main economic indicators in 2014 and 2015，basing on the assumption of good stability credit growth and LDR. The paper takes conversion rate for a hypothesis，it forecasts and inspects Sichuan’s regional gross domestic product in the year of 2014 and 2015，based on correlation and conversion rate between credit growth and regional economic growth.