Abstract: Environment vibration caused by equipment of coal preparation plant is quite serious,typical equipments were selected due to real project and the vibration of soil layers and surrounding building were simulated by sub-structure method,the influence of different hardened ground modes on transportation and attenuation of vibration wave and that on human body were mainly examined.The research result shows that vibration screen caused a strong vibration and it can be felt obviously within 30 meter of the plant,for a hardened ground,the amplitude of the surface is reduced,but acceleration is increased and vibration level is boosted accordingly than the unhardened one.For an unhardened ground,the vibration grade is close to the requirements of criterion of environment vibration and the vibrations on the surrounding buildings were very distinct.