Since the 1980s, China's airspace, air route and air route structure have been adjusted many times:1April 1989, the Eurasian air route connecting Europe and Southeast Asia was completed and opened; 1April 1994 Beijing-Guangzhou-Shenzhen route was handed over to the Civil Aviation Control Command; 1June 1996, Beijing-Shanghai and Beijing-Guangzhou routes were handed over to civil aviation control and command; On June 26, 2000, the route was handed over to the Civil Aviation Control Command; In February of 200 1 year, the polar route connecting North America and Hong Kong was completed and opened. 200 1, 1 1, and the new route structure in Sanya responsibility area and South China Sea area was put into operation; In June, 2003, the polar route realized domestic multi-point access. The above-mentioned adjustment of airspace and route structure has greatly promoted the economic operation of airlines and has been well received by domestic and foreign airspace users. Since the 1990s, China Civil Aviation has increased the utilization of new air traffic control technologies and the construction of new navigation systems: in June 2000, the L888 route based on automatic correlation surveillance (ADS) and data link communication between controllers and pilots (CPDLC) technology was completed; In February and August, 2003, the navigation procedures of Tianjin Binhai Airport approach and Beijing Capital Airport terminal area were successfully tested.

Over the years, the civil aviation air traffic control system has paid attention to the international integration, actively adopted the standards and recommended measures of ICAO, and carried out two flight level reforms in 1993 and 2002. As of February 25th, 2002, all transportation airports in China have completed the reform of altimeter calibration procedures, and in addition, the vertical separation of 1000 feet has been achieved in the maritime airspace over 29,000 feet in Sanya's responsibility area. According to the overall construction plan of civil aviation air traffic control, three new regional control centers with international standards, such as Beijing, Shanghai and Guangzhou, will be completed and put into operation this year and next. By then, the air traffic control level and comprehensive air traffic control support capability of China civil aviation will reach a new level.