The utility model relates to an improved structure of a neck shoulder massager.There is a base which is installed with a transmission device and connected with a gear set.2. The first massage head module is installed in the gear set.Second, the left and right swings generated by the first massage head module.Massage the human body;Among them,The front end of the base is provided with a second massage head module which is provided with an eccentric swing arm to fit the gear group.The end of the eccentric swing arm is provided with a connecting part.The connecting part is provided with a rocker arm massage head and a second massage head.A top cover is arranged above the base.A steering arm is connected to the middle section of the rocker arm massage head.When starting, the gear set drives the eccentric swing arm to generate an eccentric stroke and the eccentric swing arm goes back and forth left and right.The rocker massage head is forced by the second massage head module to generate a massage action such as arc swing.一種頸肩按摩器結構改良,主要有一底座其安裝有一傳動裝置並與一齒輪組連結,二第一按摩頭模組安裝於該齒輪組,二該第一按摩頭模組產生的左右擺動,對人體產生按摩動作;其中,該底座前端設置有一第二按摩頭模組其具有一偏心擺臂套合該齒輪組,該偏心擺臂之末端設有一連結部,該連結部上設有一搖臂按摩頭部其上設有一第二按摩頭,該底座上方設置有頂蓋,其上設有一轉向臂其連接在該搖臂按摩頭部中段,啟動時該齒輪組帶動該偏心擺臂產生一偏心行程且偏心擺臂左右來回,該搖臂按摩頭部被該第二按摩頭模組強迫帶動下產生如圓弧擺動之按摩動作。