The present invention provides an electrostatic discharge protector capable of protecting electronic circuit boards having various designs from electrostatic discharge freely, simply and easily. The electrostatic discharge protector of the present invention comprises at least three conductive members containing one pair of electrodes and the conductive members other than the electrodes, the conductive members are each disposed in such a way that the gap between one conductive member and the other conductive member has a width of 0.1 to 10 μm, an insulating member is disposed and embedded in at least one of gaps having a width of 0.1 to 10 μm which are adjacent to each conductive member and one electrode is connected to the other electrode paired with the one electrode through the insulating member and the conductive members other than electrodes.