To provide an accessory for a stimulation device used in excitation treatment for marriage life.

This accessory 10 has a conical base part 30 having a notch 50 in the perimeter thereof, a protrusion 34 for stimulation at the top part thereof and a bristle cluster 40 extending at the right angle to the side thereof to allow simultaneous stimulation in two areas or positions. The stimulation device uses a gradual fall transformer and a waterproof case to oscillate itself at an operation angle selected from a range of 10-80 (preferably 20-60) at a speed of 2,000-8,000 (preferably 3,000-3,600) rpm.