This paper illustrates that Tianxia is interesting in the sense that it gives a Chinese replica of global order that is generally applicable, and gives Chinese-style resolutions to global issues more so how the traditional concept of Tianxia in international relations is combined with the long-held Chinese diplomacy of nationalism. Therefore, the Tianxia system has become the answer to such questions as to what is the role of China in the current world in terms of international relations and diplomacy. This research work is to examine how the Tianxia system is employed to solve the world’s problems and the institutions that come with it. it also examines the theoretical and past problems caused by the Tianxia system and its application in the present world order. It also examines what the Tianxia system must be applied domestically before it can be applicable or viable on the world stage. This is a legitimate world order that is quite distinct from the Western world order in international relations. it is a framework for solving the world problems through the conceptualization of ideas and practically implementing them. Tianxia as a term in international relations should be construed in three different ways to have the relevant meaning when employing it in international relations. Geographically speaking, tian refers to the heavens, the sky and what is on top while Xia means below, inferior or below when the two words are joined, they mean what is below the universe or the sky. Normatively, Tianxia refers to all the people or the world institution, in understanding this, scholars have interdependently directed arguments that would solve problems not only in political philosophy, but also in political science, and this has the effect of unifying the world and the thoughts too.