Electro and magnetic rheological materials show an increasingly important position in potential applications, such as clutch, vibration damping, and micro-valves because of their fast response speed. However, easy to cause electromagnetic interference is always an unresolved problem of electro and magnetic stimulated smart materials. In this paper, combining the advantages of PLZT ceramic and electrorheological fluid (ERF), an optically controlled micro-damping system is designed, with advantages of little electromagnetic interference and non-contact control. The mechanism of the optically controlled micro-damping system is carried out, and the electrorheological fluid pressure difference of optically controlled micro-damping system under different light intensities are obtained via experimental methods. Compared experimental data with theoretical analysis, the results show the feasibility of the optically controlled micro-damping system based on PLZT ceramic-ERF and its application prospect in the field of damping control are proved.