Aimed at the vibrations of driver seat and wheel of a working fork-lift truck, the acceleration was measured and a vibration analysis based on the finite element method was made. Comparing the finite element analysis result with the result of model test analysis, the finite model is modified with the result of test. The mode analysis is done. The result shows that the fork-lift truck driver seat and wheel frequency is far away from the exciting frequency of engine. The vibration is forced vibration but not resonance.