Chongqing is the important “two points” in national strategic positioning, on the theoretical basis of financial functional view and financial geography. This paper constructs index system fitting for financial center development under the Belt and Road strategy, measures the functional advantages for Chongqing Financial Center in Chongqing’s thirteenth Five-year plan through the evaluation on such three western cities as Chongqing, Chengdu and Xian in strategic line of the Belt and Road, and provides the reference for Chongqing’s functional positioning and development strategy to develop functional financial center.