For a long time, what has dominated the United Nations (U.N.) peacekeeping and peacebuilding is the norm of liberal peace born out of the experiences of Western civilization. Liberal peace emphasizes institutional building but pays inadequate attention to the economic and social development. As a consequence, U.N. peacekeeping and peacebuilding often sustains a precarious peace. The experiences of China’s peaceful rise gave birth to the norm of developmental peace. China’s foreign aid and economic activities have spread the developmental peace internationally and had an impact upon the normative regime of the U.N. peacekeeping and peacebuilding. Developmental peace believes that under the condition of political and social stability, economic development should be the first priority. Economic development can drive a state’s comprehensive development and thereby address the root causes of domestic conflicts of the target countries of U.N. peacekeeping and peacebuilding. Developmental peace takes seriously what is ignored by the liberal peace, and the two norms of peace are complementary to each other. A rising China is not merely a norm taker or learner in U.N. peacekeeping and peacebuilding, but also a norm contributor and promoter. Developmental peace is China’s approach to U.N. peacekeeping and peacebuilding.