Abstract: In order to obtain the vibration environment under seven typical states of a large passenger aircraft, such as skidding, take-off, climbing, cruising, descending, landing and taxiing, the flight data are tested to analyze the impact of acceleration on human body. BS 6841（1987）, ISO 2631（1997） and the optimized frequency weighting method are contrasted and studied to characterize the rms value（r.m.s.） and vibration dose value（VDV） in whole-body vibration. The results show that, using different weighting methods provided by different standards to calculate the acceleration of whole-body vibration, the calculation result of ISO 2631（1997） is greater than that of BS 6841（1987）, and the improved weighting is greater than ISO 2631（1997）. The improved weighting has less effect on whole-body vibrations in both skidding and taxiing states. In the process of take-off, climbing, descending and landing, the impact on the middle row seat is greater, and its acceleration average increase rate is 25%. In the cruising state, the improved weighting effect on the acceleration of the middle row seat is up to 95.3%.