Abstract: UAVs are successfully used in many scenarios such as urban logistics and smart city construction, and along with the gradual opening of low-altitude airspace, high-density operations in urban areas have become a trend. Considering the airspace structure, UAV performance, landing and takeoff field characteristics, peripheral connecting flight paths, and other factors, the design of funnel-shaped airspace near the landing and takeoff fields of UAVs in urban scenes and the approach and departure procedure design method are proposed. Firstly, based on the current situation of domestic and international research, the key elements and design methods of the approach and departure procedure design are proposed with reference to the mature experience of manned aircraft and the characteristics of UAVs; secondly, the airspace departure and arrival procedure of a typical take-off and landing field in city is designed with the UAV application scenario as a simulation condition to evaluate the operational efficiency and safety. The research results show that the airspace can adapt to the high-density operation of the landing field, and has a high efficiency and safety factor.