The invention, which belongs to the technical field of mechanical driving and servo control, especially relates to a three-dimensional holographic-imaging servo rotating scanning system. The system comprises a servo motor having a first angle transducer, a second angle transducer, a control assembly, a servo driver, and a rotation frame. The system is a fully closed-loop servo control system. The second angle transducer detects an actual rotation angle of the rotation frame and feeds back a frame feedback signal to the control assembly; an instruction signal and the frame feedback signal are compared in the control assembly to generate a following error; the first angle transducer detects an output rotation angle of the servo motor and feeds back a motor feedback signal to the servo driver; and the servo driver controls the servo motor to make rotation according the following error and the motor feedback signal. The provided system has advantages of simple structure, low cost, easy assembling, high rotation precision, and easy control.