PROBLEM TO BE SOLVED: To provide an energy-saving type digital high voltage electrical potential therapy apparatus that achieves downsizing, weight saving, and energy saving of the whole therapy apparatus.SOLUTION: An energy-saving type digital high voltage electrical potential therapy apparatus includes: voltage control means 6 to turn input power supply to a predetermined voltage high voltage electrical potential generation means 13 to convert the input power supply turned to the predetermined voltage to a high voltage direct current or alternate current output means 18 for outputting the high voltage direct current or alternate current generated by the high voltage electrical potential generation means to a treated person side an output control side microcomputer 3 for controlling the voltage control means, the high voltage electrical potential generation means, and the output means a display side microcomputer 2 for controlling the output control side microcomputer and an AC sink circuit 20 for outputting a signal that synchronizes with the input power supply to the display side microcomputer. The voltage control means includes a transistor to which main power supply is supplied, a control IC for performing switching of the transistor by the control of the output control side microcomputer, and a smoothing circuit for generating the power supply supplied from the transistor into a predetermined voltage.SELECTED DRAWING: Figure 1
