Abstract: The rigid constraint system for water resources is a critical policy for improving the modernization of water governance and sustainable water development.Based on journal literature included in China National Knowledge Infrastructure (CNKI), this study analyzed the progress, hot spots and development trend of water resources rigid constraint system through CiteSpace software.The results showed that the main research institutions currently engaged in the study of rigid constraint systems for water resources included the Development Research Center of the Ministry of Water Resources, the Water Resources Research Institute, and the Department of Water Resources Management.The hot spots of rigid constraint system of water resources included intelligent water resources management, green water-saving technology, cross-border integration and collaborative governance, water-saving social construction, efficient utilization of water resources projects, trans-regional water resources dispatching.The study results can provide a reference for the research of the rigid constraint system for water resources.