To establish a Velocity Interferometer System for Any Reflector(VISAR) for the shock velocity measurement based on a laser Doppler shift effect, an optical system with a bandwidth of 0.2 nm was designed by using the 532 nm laser illumination. By choosing advisable materials，the fused silica was used in the optical system to improve the radiation resistance. Then, the second harmonics of the drive lasers and other stray lights are filtered by band-pass filters and laser line filters. To simplify the system assembly, the modularized design method and a optical gemel hinge were taken to compose models. Furthermore, the 532 nm laser was used for initially adjustment and the white light was used for accurately adjustment to implement the optical path difference to the zero. The proposed system show its total path length is 6.3 m, field of view is φ1.0 mm, and magnifications are 5× and 10×. A static experiment was undertaken, which can offer straight fringes and can give a static contrast above 0.67 and a resolution of 5.3 um. Moreover, a dynamic experiment of the system was carried out on the Shen-Guang laser-Ⅲ facility successfully.