This paper makes comparative analysis on the integrated competitive power of the economic development of the Changjiang River Delta and the Zhujiang River Delta from aspects of the economic structure,the infrastructure,the soft environment of economic development,the developing element factors,the coordination extent,and the developing mechanism,etc.,and refutes the current opinion of the theoretical circle of that the Zhujiang River Delta would fail and the Changjiang River Delta would win,pointing out that the prospect of the Zhujiang River Delta will be brighter.