Low-altitude wind shear is one of especial phenomena, which has bad effects on civil aircraft flight. So one of counter-measures to the effects of low-altitude wind shear is to escape such phenomena. Airborne wind shear system is an effective system which could provide wind shear warning and escape guidance commands based upon sensing the airplane’s encounter of such phenomena. This paper recommends the concept and damage of low-altitude wind shear briefly. At the same time, this paper also introduces the type of civil aircraft airborne wind shear system. In order to meet the CCAR25 and CCAR121 regulations requirements well, requirements of airworthiness terms of airborne wind shear system are deeply studied, the means of compliance are put forward. It can be a reference for domestic civil aircraft to meet regulations requirements well.