The development of water conservancy needs a large number of creative talents. Cultivating innovative talents of water conservancy is the urgent need of reform and development of irrigation works, and is also an important part of the construction of innovative country strategy. Based on the analysis of present water conservancy undergraduate innovation ability, aiming at the limitation of cultivation of current water conservancy innovative talents, and combined with the practice of Nanchang University in undergraduate talent training of water conservancy, the paper provides ideas in undergraduate cultivation of innovative talents through interdisciplinary innovation, concept innovation and so on, which also provides reference for innovative talent training of other majors.