Urban wetland plays the important role of ecological guarantee in urban sustainable development. In recent years, urban wetland has become more fragmented due to the accelerated urbanization, which severely threatened the security of wetland system. Ecological network is a kind of effective landscape organization which connects important habitat patches through corridors. Compared with the landscape indexes, the analysis of urban wetland system based on ecological network is beneficial to reveal the characteristics of landscape connectivity. We took Wuhan City as our study area and used the morphological spatial pattern analysis (MSPA) method to identify the wetland sources. Considering the influence of landscape types, slope and human activity intensity, we constructed a comprehensive resistance surface to reflect the degree of obstruction when species spread between the wetland patches. The minimum cumulative resistance (MCR) model was adopted to establish the wetland ecological network. We classified the corridors according to their connectivity importance. Finally, we analyzed the structural and regional characteristics of wetland ecosystem in Wuhan. The results show that: the amount of wetland resource in Wuhan is large, but it's seriously fragmented and distributed unevenly. The wetland ecological network has a suitable landscape structure for the effective circulation of ecological processes. Most of wetland corridors are located between patches near the edge of Wuhan, especially in the south of the city. The characteristics of wetland system vary greatly in different regions. Jiangxia and Hannan have abundant wetlands and corridors, in which wetland patches are also of high quality. Their corridors have good landscape structures but are not very important for wetland connectivity. The wetlands in Huangpi and Dongxihu have little quantity and broken shape. The corridors in these two districts are few and of low importance, and their landscape structures also need to be improved. The amount of wetlands and corridors in Xinzhou are both inadequate, and the corridors are important for maintaining wetland connectivity while their landscape structures are not good enough. The results could provide scientific basis for the protection and construction of Wuhan wetlands.