Mediation diplomacy has emerged as one of the central pillars of China’s foreign policy objectives and practice, with Beijing deliberately positioning itself as a peacemaker in the Middle East conflicts and crises in the region (e.g., Afghanistan, Syria, Sudan, Yemen, Iran, and the Israeli-Palestinian peace process). This article examines whether China's mediation diplomacy in the Middle East is a precursor of change in China’s interpretation and application of the principle of non-intervention.