The pattern of internal power distribution has changed in a fundamental way，and the western countries have also modified its foreign policy focus from global governance to great power competition. “The great changes not seen in a century” are further unfolded as “Changes of the world，of our times and of history”. Facing the significant changes in external environment，China defends its national interest with unwavering resolve. On the one hand，China refuses to surrender to the unjust pressure from the west，on the other hand，China keeps contact with United States and its European and Asian allies，for the sake of global cooperation. As the result of its dual efforts，China stops the free fall of Sino-U.S. relationship，and make the European states declare their opposition to decoupling with China. Besides defending its national interest，China is also an ardent advocator for the international order accepted by all the states，which is based on UN chapter，aiming to maintain and to enhance the peace and stability of international system. Following its own vision of international order，China plays an active role in mediations around Ukraine crisis，and is welcomed by both Ukraine and Russia. China also plays a key role in the rapprochement between Saudi Arabia and Iran and earns great reputation in international society. These peace dealing efforts contribute a lot to the stability of a turbulent world，and make China a leading partner of international cooperation，while the west is in obsessed with zero-sum geopolitical game. With the help from China，the circle of friends of the Shanghai Cooperation Organization and the BRICS expands. And the developing countries become much more united with greater discourse power and better organized cooperation mechanisms.