The Group of 20 is a group of leading industrial and emerging economy countries that began meeting since 2008 in response to the global financial crisis. China-Korea collaboration within the G20 will be an important bilateral relationship that can contribute significantly to the G20’s success. Both China and Korea are relatively new to global leadership and show a willingness to raise their profiles on the global stage. This paper analyzes the progress that China and Korea have made at the G20 and explores ways to expand their cooperation. We argue that their leading positions in their respective global governance groups, the BRICS and the MIKTA, give them many opportunities for expanding bilateral cooperation at the G20 where both the BRICS and the MIKTA are active. What they need to take full advantage of the potential of their G20 cooperation is a more strategic perspective and we propose a new framework for identifying concrete issues of cooperation and strategies for pursuing them based on their common interests, policy histories and dynamics of G20 governance.