The application scopes of complex shape and structure units are becoming much wider. The problem is that these units are both complex in shapes and micro in structures. In order to mach complex form parts with high efficiency, the characteristics of fast tool servo process were analyzed in this paper, and a fast tool servo (FTS) system was developed, driven by voice coil motor. The characteristics of dynamics and electromagnetics were thoroughly analyzed, the transfer function model of FTS system was founded, and the control method was designed. On the basis of the above work, the performance of FTS system was tested. The result shows that the FTS system works with high resolution, good locating accuracy and high response, and it can act as fast feeding device of tool in fast tool servo process.