Supposing that all theories of international relations are only different parts in the process of「structuralisation」on international relations, we will use semiology to try to construct, step by step, a structural chart of international relations: By firstly recognizing the「interfrontierality」as a specific code of international relations, we will then construct an axis between the two binary groups in the domain of ethics and values. With help in specific codes and non-specific code we can distinguish five steps: the cultural core, the elements of power, politics of domestic affairs, boundary elements, and Tianxia. Each lever consists of four sub-binaries. Finally, we will determine within the structural chart the exact form, position and meaning of each different theory during the process of construction, structure and deconstruction.