Actuators are important component in active vibration control system, the choice of which is of significant influence on the effectiveness of the whole active vibration control system. In this paper, a type of micro vibration speaker actuator’s characteristics was studied. The linearity of the amplitude and the phase in response as well as the FRF curve based on the rigid/ flexible foundation were showed in the paper. Besides, the data processing of result has been done based on the LabVIEW. Finally, the paper made some useful conclusions of the mini vibration speaker’s in detail. The result shows: 1) the performance of its power amplifier was different in the case of different frequency. The amplitude in response changed linearly along with the amplitude of sinusoidal voltage ranging from 0 to 0.3 V in various frequencies, which changed nonlinearly when the voltage was greater than 0.3 V. 2) When the voltage was constant, the phase difference was getting small while the frequency was getting high. 3) The amplitude in response was getting constant when the frequency was greater than 300 Hz. The constant amplitude in response was 2 N.