Abstract: In order to realize the high speed and high precision control of the imaging beam for the deep space detection system, the theoretical analysis and experimental verification of the fast steering mirror (FSM) driven by the voice coil actuators (VCA) were carried out with a ⌀50 mm×4 mm silicon mirror as the load. At first, the drive mechanism, configuration, and mathematical model of the FSM were presented. Then the finite element method was used to study the influence of the coil, permanent magnet and air gap size of the VCA on the driving torque. Finally, a prototype of abovementioned FSM was designed, produced, and tested, respectively. The result indicates that, the angular stroke of the FSM is greater than ±1°, and the 3 dB bandwidth is greater than 500 Hz. The procedure disclosed here is helpful for FSM to be applied in the fields of deep space detection, laser communication, photoelectric countermeasure, etc.