Abstract: During the task of maritime warfare training, the composite of a helicopter experienced serious aging. So, the sensitive environmental factor of the composite was screened out. The aging parameters include temperature, humidity, and ultraviolet light, etc. Based on this, the method of compilating the using environment spectrum for the helicopter composite structure was put forward, and the corresponding environmental spectrum was given out. Based on the principle of equal damage of humid heat effect and photooxidation aging to the CFRP plate, a suitable method of compilating the laboratory accelerated aging environmental spectrum for CFRP was developed, which shortens the environmental adaptability test cycle of helicopter composite and provides a reference for the research and development of composite and its engineering application.