Abstract: The fourth wave science and technology revolution is quickly ushering in a worldwide military revolution. The major powers such as the United States, Russia and China are all striving to catch up with the wave by accelerating their own research on new military technology and the deployment of new military equipment. This presents significant changes to the international security system: the existing disarmament and arms control system is on the brink of collapse, strategic competition among the big powers has intensified, and the risk of global turbulence is on the rise. The future of international security and its mechanism depends both on the method and direction of the technology revolution, and on the ability of the big powers to put aside their differences and avoid conflict in the major arenas of competition. In this process, China should seek to play a bigger and more constructive role. This would not only be conducive to world peace and development, but is also the only way for China to secure a seat in the future international system. Full text available here.