The College of Environmental Science and Engineering, Peking University (CESE-PKU) is one of the first institutes in China to conduct education and researches in the field of environment. CESE-PKU is a pioneer multi-disciplinary institute to promote studies on environmental issues with integration of natural science, technological science and social science. It has a State Joint Key Laboratory of Environmental Simulation and Pollution Control (Branch of Atmospheric Environment). CESE-PKU has 63 faculty members including 20 professors and 28 associate professors. In recent decade, the foci of CESE-PKU research was placed on urban and regional air pollution in China, covering regional air pollution monitoring, kinetic study on air pollution formation processes, and numerical model development. CESE-PKU organized a series of national research projects, including the National Key Basic Research Program (973) on the air pollution in coast region of east China, the national High- Tech project (863) on the prevent of air pollution complex in city clusters in China, and the National Natural Science foundation key project on formation of secondary air pollution and its impact on health and climate. CESE-PKU was one of the leading institute for air quality assurance program for the 2008 Beijing Olympic Game, 2010 Shanghai World Expo, and 2010 Guangzhou Asian Games, and was involved in the design of the national air quality improvement plan. CESE-PKU has signed agreements with institutions from Europe, USA, Japan, Korea for long-term cooperation.