This article introduced the result of fluctuation measurement of multipurpose forest fire fighting vehicle by experiment. Based on the actual operation of the vehicle, the authors developed the method for determination of the measuring parameters. In order to determine the measuring parameters, the authors selected and used the accelerometer B12/1000, the distances measurement sensors H7, multichannel measurement equipment DMCplus and specialized software DMCLabius and Dasylab5.0. For vehicle running in the woods with different bumpy height, the different running speed of vehicles and working systems on vehicle. Using sensors and measuring devices to determine the vehicle body acceleration, the vertical and horizontal shake angle of vehicle body.