Based on the new development concept, the connotation of new quality productive forces of water conservancy was analyzed, and the basic principles for constructing an evaluation index system for new quality productive forces of water conservancy under the new development concept were proposed. An evaluation index system for new quality productive forces of water conservancy was conducted from five dimensions:innovation, coordination, green, openness, and sharing, which includes a total of 30 evaluation indicators. Among them, the innovation dimension has 9 indicators, including R&D funding in the water conservancy industry, the number of water conservancy patent authorizations, etc. The coordination dimension has 5 indicators, including the degree of collaborative governance of water environment, the ratio of per capita domestic water consumption of urban and rural residents, etc. The green dimension has 5 indicators, including the utilization rate of recycled water, the water quality compliance rate of water environment functional zones, etc. The open dimension has 5 indicators, including the number of international cooperation projects, the international recognition of water conservancy technology standards, etc. The sharing dimension has 6 indicators, including the rural tap water penetration rate, the completeness of water resource sharing policies, etc.