The invention relates to a digital frequency dividing and phase shifting circuit for driving control of a three-phase synchronous motor. The digital frequency dividing and phase shifting circuit comprises a 2-4 frequency dividing circuit, a pseudo 4/3 frequency dividing circuit, a 64 frequency dividing circuit and a frequency dividing and phase shifting circuit, wherein an input end of the 2-4 frequency dividing circuit is connected with a square wave input signal and an output end is connected with the input end of the pseudo 4/3 frequency dividing circuit; the output end of the pseudo 4/3 frequency dividing circuit is connected with the input end of the frequency dividing and phase shifting circuit through the 64 frequency dividing circuit; and the output end of the frequency dividing and phase shifting circuit is externally connected with a drive circuit. Through combined frequency dividing design of the 2-4 frequency dividing circuit, the pseudo 4/3 frequency dividing circuit and the 64 frequency dividing circuit, the signal frequency is divided into six times of the final output signal frequency; the phase difference accuracy is improved; the phase difference of the circuit product is 120+/-0.3 degrees; reliable operation of the circuit is ensured; and the output frequency is stabilized at 1kHz.