Abstract: According to the characteristics of Taihu basin and considering the spatial heterogeneity of rivers and the relative consistency in the region,the river function classification system constituted by attribute-layer,zone-layer and function-layer is established,and the river function regionalization method and procedures on regional level are developed.Based on the hydrologic divisions of Taihu basin,the river function regionalization is carried out and management measures of each function zone are also propo...