Demographic dividend derivates from the typical period of population transition,which is the population structure changing from the high birth rate,low death rate and high natural growth rate to low birth rate,low death rate and low natural growth rate. Recently, it is well-known that the economic growth of Chongqing is booming.After analysing the data of Chongqing’s Savings Deposit,GDP and dependency ration from 1997 to 2011, the result shows that both GDP and dependency ration have an effort on Savings Deposit level. Hence, demographic dividend of Chongqing, populaiton age structure, is a significant factor to cause fluctuations and changes in the level of savings.