This paper introduces a study of vibration absorber adopting electrorheological fluids (ER for short). When the ER fluids are impacted by the external electric field, the viscosity of the fluids will be altered. And when the vibration absorber is under the impaction of the external electric field, the structural damping of the ER fluids will change. So as to control actively the isolation mounting of the ER fluids, we can utilize the ER fluids to generate the impaction of the damping. The character of the ER fluids in the isolation mounting will be controlled by the external electric field. And the product among the volume of the fluids, the electric field intensity and the current density will be able to signify the requirement of the equipment of the vibration absorber to the external power source. In order to gain the control electric field of the vibration absorber, the equipment of the vibration absorber adopts the new piezoelectric transformer to generate high voltage electric field the ER fluids need. The power source possesses the following advantages such as the compact structure, the anti-interference of the electromagnetism and the high conversion efficiency of the power source. And this is especially suitable for such applications entailing the compact structure as the structure of the vibration absorber of the space shuttles, the space searching, the rockets and the robots. This vibration absorber in the course of the study issued as a certain kind of vibration absorber known as shaking platform. The experimental data testify that the vibration absorber possesses obvious anti-vibration effect.