Abstract: Common nature lightning will directly threaten the flight safety of aircraft, In order to further understand the thunder of the aircraft environment, improve the lighting protection ability. In this paper, using ANSYS company of the quasi static electromagnetic simulation software Q3D Extractor boundary element method, equivalence scale model of aircraft for the lightning attachment division of stimulation analysis and research, put forward a new lightning partition simulation analysis method. The division of 1A zone of the lightning zoning is present and the numerical results are compared with SAE-ARP5414A standard theory partition. Proof of this method is effectives, for the plane design of lightning protection has important reference significance.