Datun Street is located in the northwestern part of Chaoyang District, Beijing, adjacent to Laiguangying and Wangjing in the east, the Olympic Village in the northwest, and the Asian Games Village and Xiaoguan in the south, with a total area of 10.013 square kilometers. Datun Street is characterized by a large population, many social units and high-grade districts, with a resident population of about 115,000, a floating population of 47,000 and 18,000 college students, making a total population of nearly 200,000 people. There are 3,054 legal entities, the number of which is the second largest in the region, and the enterprises are mainly in the tertiary industry, with well-developed commercial, catering and entertainment industries.