The invention relates to the technical field of massager, in particular to a head massager. The head massager comprises a base, a footstock which is in a coordination and connection with the base, a slider and a arc-shaped shell body. Two sides of the footstock are provided symmetrically with a fixed hole and a perforation. A fixed block A and an eccentric fixed block B are installed inside two perforations which are installed symmetrically. An eccentric shaft A is installed fixedly on the eccentric fixed block A and the eccentric block B is provided fixedly with an eccentric shaft B. One end of the slider is provided longitudinally with a kidney-shaped hole. The other end of the slider is provided longitudinally with a location hole A. A location hole B is installed on the middle portion of the slider. The eccentric shaft A and the eccentric shaft B is fixedly connected with location holes A which are installed on the two sliders. The slider is connected with the outside of the arc-shaped shell through a bolt which is penetrates through the location hole B. An actuating device drives the eccentric fixed block A and the eccentric fixed block B to rotate. The head massager has the advantages of being tight in structure, reasonable in design, suitable for different consumers and uniform in massage strength and swing.