The establishment and development of combinatorial mathematics center can not be separated from the concern and support of leaders at all levels. From 65438 to 0997, famous mathematicians such as Wu Wenjun, Yang Le, Wan Zhexian and Lin Qun attended the inaugural meeting of the Combinatorial Mathematics Center of Nankai University, giving ardent hope to the development of the center. 1998 10 vice premier Li Lanqing visited the center in person and gave instructions and care for the development direction of the center. In February 2005, Academician Han Qide, Vice Chairman of the National People's Congress Standing Committee (NPCSC) and Chairman of the Central Committee of Jiu San Society, inspected the Combinatorial Mathematics Center and spoke highly of its achievements. Former Minister Zhu Kaixuan and Minister Chen Zhili of the Ministry of Education are very concerned about the establishment of Combinatorial Mathematics Center. Qu, Vice Minister of Science and Technology, Vice Minister of Information Industry, Xing Yuanmin, Deputy Secretary of Tianjin Municipal Committee, and He Zhiyu, Director of Tianjin Education Commission, gave valuable guidance to the construction and development of Combinatorial Mathematics Center.