Discipline Knowledge Repository (DKR), which includes semi-structured and unstructured information and belongs to Content Management System, asks new requirements for the data model and the modeling methods. In this paper, an object oriented model and the corresponding XML schemes are proposed, which respectively specify the conceptual scheme and the logical schemes of the DKR. All kinds of classes and the relationships are analyzed in OOM, and the elements of XML schemes are described particularly. The two schemes help us to understand the structure of discipline knowledge, and are the foundation for building practical DKR.