Fuel tank system explosion prevention of civil aircraft is an important part of aircraft design, and airworthiness requirements lightning protection regulatory for fuel tank system as an important part of fuel tank explosion proof design and validation, has attracted widespread attention in the aviation industry and Federal Aviation Administration(FAA). This paper studies the latest FAA lightning protection airworthiness requirements of civil aircraft fuel tank system, summarized the evolution of the corresponding provisions and compliance validation method, and also predicted the future effect on aviation industry. The results show the method can provide useful reference for the civil aircraft airworthiness certification.