Since China became the member of United Nations in 1972, its attitudes and behaviors to UN were based on its leaders and domestic and international environments, particularly related to international peacekeeping operations, its attitudes and behaviors were with diplomatic intensions and national interests. China's policy related international peacekeeping operations are an attitude of cautious and conservative, this attitude came from maintaining state sovereignty principles and international moral norms. Generally, from Mao, Den, Jiang to Hu, China's policy related international peacekeeping operations have changed from against to support and toward to more passive and comprehensive, and emphasized to preserve its overseas interests, all these changes were related to its outer strategic environments and its rising. This paper explores China participated the international peacekeeping operations of United Nations with historical and comparative analysis methods to understand the different policy of its leadership in various eras (from Mao to Hu), and to analyze their processing and development strategies as the historical background of my research for comprehensively understanding the strategic thinking of China's leadership.