This study focuses on the disposal strategy of dispatch release for bleed air system failures in A320 series aircraft, which can have a significant impact on airline operational safety during winter operations. Firstly, the dispatch release work was introduced, as well as the concept of dispatch release with faults. The dispatch work was divided into two parts: release and ground-air support. Secondly, the source and function of the bleed air system were explained, and it was pointed out that the engine bleed air system and the APU bleed air system are the most likely systems to affect the ground-air support work for dispatch. Furthermore, the principle and system logic of the bleed air system were described, and the differences in the characteristics between different engine models were pointed out. It was pointed out that the CFM56 and V2500 engines assembled by the CEO series of A320 have similar air intake characteristics, with the main differences being in economy and maintainability. On the other hand, the LEAP engine equipped with NEO series of A320 has strict requirements for bleed air during start-up ( also applicable to the Boeing 737MAX series and C919 aircraft equipped with this engine), and caution is needed when considering dispatch release in case of single bleed air failure. Afterwards, the reasons for common faults such as bleed air failure, abnormal bleed air temperature, and bleed air leakage were analyzed. Finally, a detailed dispatch release disposal plan for bleed air system failures was presented, and a numerical example was used to illustrate.