Many nonmetallic material decoration and equipment are used in modern transport airplane interior. These flammable materials are one of the most important reasons that caused airplane fire. To ensure transport airplane cabin safety, that interior materials are required to be fire prevention is a necessary method to gain time for occupants escaping from the airplane after airplane crash happened. Based on analysis of the contents of airworthiness clauses in Chinese Civil Aviation Regulation CCAR part 25, details fire prevention requirements to nonmetallic materials used for different decoration and equipments in the transport airplane interior are found out, and detailed compliance verification test method is provided for reference. The research can provide guidance for compliance verification planning and implementation in interior materials fire prevention of transport airplane.