In order to promote the information construction of the Yangtze River Scientific Research Institute during the 13th five-year planning period, the Internet Plus Water Sci-tech Action Plan of the Yangtze River Scientific Research Institute is prepared, in which the construction target of “Yangtze Science Clouds” in 2018 is proposed. The “Yangtze Science Clouds” consist of OA cloud, management cloud, scientific research cloud, technical service cloud and intelligent river basin research cloud, covering the main work of the institute. OA cloud means cloud-based working environment, and management cloud refers to cloud-based management flow, and scientific research cloud, as the core business, means cloud-based scientific research process, while technical service cloud and intelligent river basin research cloud refer to cloud-based information platform for sci-tech support. At present, the infrastructure construction of “Yangtze Science Clouds” is completed and the initial application is being carried out orderly. After construction, the level of management standardization, scientific research process informationalization, technical consultation networking and sci-tech support intelligentization will be improved significantly.