According to the independent, scientific, system level and operational principles, an indicator system for the evaluation of water conservancy management and service ability of modernization development level in Zhejiang is constructed. The system is based on the full analysis of a large number of domestic and foreign related indicators, combined with the actual situation of Zhejiang Province, preferably including six criteria layers, flood & typhoon control and drought management, water conservancy project management, water management, water conservancy projects, talents guarantee ability and the financial security ability. On the basis of fuzzy clustering iterative scientific method, the index weights were determined, and the development level comprehensive evaluation model was constructed. The level of modernization of the water resources management and service ability in Zhejiang in 2015 was evaluated using this model. The results are compared with the expected values in 2020. Solutions and suggestions are put forward according to the problems and weak links.