Abstract: The development of China-ASEAN free trade area supplies opportunities for the implement of air transport liberalization in the area. Not only will it impact the original legal system of the bilateral air service agreements between China and ASEAN, but will create a trend that the management system of air service agreements develops towards multilateral liberalization. Based on China’s condition and actual needs, we should open our air transportation market to ASEAN in different stages, levels and steps and thus boost the process of the air transport liberalization in the area.