The relationship between regional economical development and credit quota was studied in this paper, based on officially published data of China's 31 provinces, municipalities and autonomous, by using unit root test, cointegration test, Granger causality test, and panel data model. It is evident that a long-term stable balance does exist between regional GDP and its credit quota, and further more, credit quota is a Granger cause of GDP growth. In most regions of China nowadays, capital market and direct investment channel are still not well developed, and therefore credit quota, as an indirect way of investment, had become one of the most important factors affecting the development of area economy. Compared to undeveloped regions, developed regions have broader financing channels, faster growth of credit quota, and as a result, its economic development has weaker dependence on credit funds.