The purpose of the construction of applied mathematics laboratory is to recruit talents from all over the world, train and transport talents for universities and research institutes across the country, and promote the improvement of the overall scientific research level by attracting outstanding talents at home and abroad. According to the report of Peking University Institute of Mathematical Sciences on the key laboratory of "Mathematics and Its Application" of the Ministry of Education in Peking University, the purpose of the construction of applied mathematics laboratory is to recruit talents from all over the world, train and transport talents for universities and research institutes all over the country, promote the overall scientific research level by attracting outstanding talents at home and abroad, cultivate a group of comprehensive young talents with international standards, and promote exchanges and cooperation between domestic and foreign scientific research groups. Peking University Key Laboratory of Mathematics and Its Application was established in 1989, which is a "key discipline development project" loaned by the World Bank. 1994 became the key open laboratory of the state education commission, and 1995 passed the acceptance of the laboratory by the expert group of the world bank loan project of the state education commission. In 20 15, the key laboratory of the Ministry of Education was evaluated as "excellent" and the Department of Mathematics and Physics ranked first. Therefore, the purpose of the construction of applied mathematics laboratory is to recruit talents from all over the world, train and transport talents for universities and research institutes all over the country, and improve the overall scientific research level by attracting outstanding talents at home and abroad.