A rotating and extensible swinging massage head unit includes: a ring having an eccentric shaft hole a swinging arm extending laterally from the ring, the swinging arm having a centrally-located oblong limiting slot, a driven side connected to the ring, and an active side having thereon a massage bump, an eccentric shaft inserted into the eccentric shaft hole of the ring and having therein a central axial pore a turntable disposed integrally on a top side of the eccentric shaft and being concentric with the central axial pore, wherein a massage hemisphere is disposed protrudingly on a top side of the turntable. Rotation of the eccentric shaft swings the swinging arm to perform a swinging kneading massage and rotates the turntable to perform a rotating massage simultaneously.