A novel optical switching based on polymerdispersed liquid crystal (PDLC) is presented. Utilizing the electro-optic properties of PDLC, the optical switching functionis realized.The PDLC films are prepared by photo-polymerization induced phase separation (PIPS),and the detailed process including the material selection, process route and preparation flow is described. The electro-optic properties of PDLC are tested, compared and analyzed,and a better preparation method is obtained. A small volume driving scheme of optical switching is proposed and realized, and a stable method to extract the electrode is given. The experimental results show that the circular optical switching diameter is 10 mm, the threshold voltage is 4.316 V, the saturation voltage is 13.938 V, the turn-on response time is 2.6 ms, the turn-off response time is 96.7 ms, and the contrast is 11.46.The optical switch has the miniature and low-voltage-driven features.