The invention discloses electric spark microhole processing pulse power supply suitable for the numerical control electrical discharge wire-cutting, which comprises a main vibration circuit, a drivingcircuit, a detection circuit, a non-normal spark treatment module in breakdown cycle, a non-normal spark treatment module in heavy current processing cycle, the high voltage direct current power supply, the medium voltage direct current and a power amplification circuit; wherein, the non-normal spark treatment module in breakdown cycle and the non-normal spark treatment module in heavy current processing cycle are arranged between the main vibration circuit and the detection circuit which is used in the real time online detection of gap discharge state; the signals of the no-loaded cycle in breakdown are adopted as the waiting signals of the main vibration circuit, and the signals of the heavy current processing cycle are adopted as trigger signals of the intermittent inhibitive cycle ofthe main vibration circuit; the switching of the multifunctional processing circuit and the working modes of two power supplies on the same wire-cutting machine can be realized by controlling the on andoff time of a first power switch tube (T1).