The invention relates to a method for graphically representing network topological objects and network topological object relationships in network planning. The logical topological structure of a physical network is represented in a topological graph drawing area in planning software by the following operation steps: 1, drawing a station and nodes; 2, drawing an optical cable between two nodes; 3, drawing an optical fiber pair on the optical fiber; 4, drawing end-to-end service connection between the two nodes; 5, drawing a shared risk link group; 6, creating linear multiplex section protection; 7, creating a ring; and 8, creating service route. In the method for graphically representing the network topological objects and network topological object relationships in network planning, the graphical representation mode is direct, simple, clear and complete, all network topological objects in an SDH/ASON network are covered basically, and thus, it is relatively easy to define a mathematic model required by the operation of the planning software on this basis, and a mathematic foundation is provided for the operation of the software.