Based on the compliance status of domestic and foreign transport aircraft with article 25. 865 of airworthiness standards, combined with the control and safe flight needs of aircraft in a certain period of time under fire conditions, and on the basis of analyzing the fire protection requirements of key flight safety components vulnerable to aircraft fire, this paper proposes necessary flight controls, engine mounts and other flight structures located in or adjacent to the designated fire zone, such as engine mounts, the main flight controls adjacent to the engine compartment or APU compartment must be made of fireproof materials or shielded with fireproof materials, so that they can withstand the fire impact for at least 15 minutes. The analytical airworthiness requirements and compliance verification methods in article 25. 865 were proposed. This paper has carried out the research on the formulation background, technical requirements and compliance verification methods of article 25. 865, including the analysis of airworthiness requirements, the interpretation of fire prevention definitions, the compliance verification ideas of fireproof materials and non-fireproof materials and the fire assessment of key flight controls, shielding, redundancy and aeroelastic stability, forming the airworthiness technical requirements and compliance verification methods of article 25. 865, which can provide a reference for the airworthiness design and compliance verification of transport aircraft in accordance with article 25. 865.