A massage device includes a rotation member and a massage head seat. The rotation member includes a driving axle at an upper end thereof to connect an eccentric rotation disc. A motor is to drive an axle of the eccentric rotation disc. A rivet is inserted in a through hole of a rotation post and pivoted to a hole of the eccentric rotation disc. The hole is disposed at an eccentric position of a top end of the eccentric rotation disc. The rotation post is secured in a link post at one end of the massage head seat.