PROBLEM TO BE SOLVED: To provide novel xerostomia treatment means which allows many xerostomia patients to safely and easily have treatment without anxiety.SOLUTION: A xerostomia treatment device is configured to stimulate a submaxillary gland and a sublingual gland with an interference wave percutaneously. Two pairs of electrodes with pairs of plus and minus poles are disposed on a jaw lower part, where frequencies of the two pairs of electrodes are to 500-8000 Hz and difference of frequencies among the electrodes is set to 10-100 Hz. The xerostomia treatment device further includes means capable of outputting output from the electrodes for 1-20 minutes.SELECTED DRAWING: Figure 1A