The invention provides a control method used for a swing motor and the swing motor. The control unit of the swing motor is also used for storing the set pulse parameters and outputting alternating pulses having the corresponding pulse width and frequency according to the set pulse parameters so that the swing arm is enabled to swing according to the swing mode corresponding to the pulse parameters, wherein the swing mode includes at least one of a full amplitude swing mode, a secondary amplitude swing mode, an in-situ jitter mode and a composite swing mode, and the composite swing mode is generated by superposition of the full amplitude swing mode and the in-situ jitter mode or generated by superposition of the secondary amplitude swing mode and the in-situ jitter mode.