There are problems in the process of digital twin Yellow River construction,such as insuffi cient capacity of computing infrastructure,low effi ciency of data storage,processing and service,and infl exibility of resource service mode. In view of that,this paper proposes the reconstruction and construction scheme of multi-computing integration Yellow River Cloud based on the actual demand on computing infrastructure,combined with the relevant technical specifi cations issued by the Ministry of Water Resources. A comprehensive analysis of key technologies is carried out,such as multi-computing power and multi-modal storage mode. In terms of the multi-computing integration Yellow River Cloud,the overall framework,deployment architecture,resource pool design and resource management design are put forward. Multi-computing power integration Yellow River Cloud can generate virtualization,highperformance,bare metal and other computing power for diff erent scenarios,such as model computing,data base, intelligent application,big data processing and analysis. It can match centralized and distributed storage resources, based on data types,characteristics,and data volumes. A cloud management mode adapted to the organizational structure of Yellow River Conservancy Commission Information Center is proposed,which can provide an effi cient computing base for the construction of digital twin Yellow River.