Abstract: Digital twin is an important foothold of digital transformation, and data governance is the core of the interaction and integration of both physical and virtual entities of digital twin. The City Information Model(CIM) is an important platform which supports for data governance facing digital twin. This paper first analyzes the scope and content of digital twin-oriented data governance, proposes a data governance framework based on the CIM platform, and then studies the technologies of data governance on the basis of workflow and multi-source data visualization through hierarchical classification and other technologies, which finally obtains the results of data governance construction and application services of the CIM platform in Shanghai. Through research and practice, it has proved that the framework proposed in this paper is feasible, extendible, and open, which can provide reference for data governance research and application practice under the context of digital twin.