Abstract: With the acceleration of urbanization, the original natural habitats and ecological processes in the Jiangnan water network area have been destroyed, the urban ecological security has been gradually lost due to the ribs and regional features, and the construction of a composite ecological network for regional ecological protection and sustainable development. It is of great significance. This study comprehensively considers biological processes, hydrological processes and human processes, builds habitat networks and recreation networks based on cumulative resistance models, constructs water-green networks using ArcGIS hydrological analysis, and builds an ecological network framework for multi-objective fusion through GIS spatial superposition to Jinzhou Jinzhou. The district explores the construction of a composite network for the case area. The results show that: (1) The source area of single-objective ecological network in the study area is water-green source area > ecological source area > recreational source area; the source area of double-objective ecological source area is water-green ecological source area > water-green recreational source area > Ecological Recreational source area, and the source area accounts for a small proportion in the total area, mainly distributed in Maoshan in the West and Changdang Lake in the south; (2) The triple-function corridors in the study area are mainly distributed between the central and Western Maoshan Mountains. In addition, a large number of ecological and water-green corridors are also distributed in the southwest; more recreational corridors are distributed in the northeast; (3) In the later period, we should strengthen the protection of the key ecological functional areas such as the western and southern areas where the source and corridor distribute more, while strengthening the protection of the eastern and Northern areas. (4) Through case studies, the construction of complex ecological network can connect relatively isolated landscape patches in the region, which is conducive to the protection of biodiversity, the improvement of urban ecological environment, the maintenance of regional landscape pattern, and the guidance of the rational development of regional space.