The utility model relates to a high voltage power distribution safety technical field discloses an intermittent discharge detection device of power supply unit high voltage power distribution device, include: the receiver discharges, the receiver that discharges constitute by audio amplifier and photoelectric receiving tube, audio amplifier pass through the first signal amplifier circuit and the control alarm links to each other, the photoelectric receiving tube link to each other through the 2nd signal amplification circuit and control alarm, the control alarm passes through wireless network interface card, network and power supply equipment monitoring machine and links to each other. The utility model discloses can send the early -warning singal to controlling the alarm to the slight intermittent discharge phenomenon that the high voltage power distribution device produced for maintainer in time discovers the accident potential to take the clearance measure as early as possible, guarantee power supply safety.