Abstract: The questions of the inter-urban interaction and the location quotient, the outward function, the degree of urban flow and centrality in each city in Wuhan City Circle were discussed and analyzed, based on the models of the inter-urban interaction and the degree of urban flow. The result showed that:there was a weak and uneven economic relation between cities; the economic pattern that Wuhan city held the only strongest status in the circle had been showed, which represented its conspicuous centrality; there was a backward in outward service function and inharmonious service function between cities in the circle; the regional integration was still at an early stage with the weak function of economic agglomeration and radiation. Accordingly, the optimal strategy was proposed that the development of each city should be promoted respectively in order to receive an overall strength; the transportation should be improved in order to intensify the network structure; the function of each city should be identified in order to realize the functional complementation; the harmonious development should be advocated in order to enhance the degree of urban flow