The cockpit emergency exit design is an important aspect in civil aircraft design. The rationality of emergency exit settings, which gets widespread concern by the airworthiness authorities, has a key influence on crew escape. This paper studies the latest CCAR cockpit emergency exit airworthiness requirements of civil aircraft and FAA advisory circular, and summarizes the evolution of the corresponding provisions and compliance validation method. The results show the method can provide useful reference for the civil airworthiness certification.