PROBLEM TO BE SOLVED: To provide an electrostimulator capable of optionally selecting at least two electrodes of a plurality of electrodes and applying an electrostimulation signal between the electrodes.SOLUTION: An electrostimulator applies electrostimulation signals output from an electrostimulation signal generation circuit (40, 40A) selectively to a plurality of electrodes (E1-E24), and includes a discrete electrode selection device (30). The discrete electrode selection device includes a plurality of neutral monopolar double-throw type switching circuits (S1-S24) provided for the plurality of electrodes, respectively. Each of the switching circuits switches the corresponding electrode to one of three states: connection to one of two output ends (T1, T2) of the electrostimulation signal generation circuit (40, 40A) or keeping neutral.