Sixth ring road. According to relevant data, Yanqi Lake Campus of Chinese Academy of Sciences is located in Yanqi Lake East Road, Huairou District, Beijing, and Yanqi Lake in Beijing belongs to Huairou District. Huairou District belongs to the Sixth Ring Road according to the location map of Beijing, which is biased towards the Fifth Ring Road. The University of Chinese Academy of Sciences, referred to as "National University of Science and Technology", with its main campus in Beijing, is an innovative university with the integration of science and education as its running mode and postgraduate education as its main body. It is a national "double-class" construction university.