Abstract: This paper analyzes several key aspects of the multi-axis random vibration test control techniques including the identification of the system frequency response function, the generation of the drive signal, and the control algorithm. A multi-axis random vibration controller is developed based on those key techniques and the major framework of the controller is discussed. Finally, a triaxial test is carried out by the controller. The test results show the feasibility of the control algorithm and the good control strategy of the multi-axis random vibration controller, in which several key techniques are validated.