Provided are: a massage device capable of imparting comfortable kneading and massaging sensations and preventing wear on covers covering treatment elements and a massage chair provided with the massage device. This massage device comprises: a pair of left and right massage members (10, 11) provided with the treatment elements (91-94) and a massage mechanism (12) which actuates at least one of the massage members (10, 11) so that the treatment elements (91-94) move close to and away from each other in the left/right direction so as to cause a kneading action. The massage members (10, 11) are each provided with an arm member (15, 16) extending in a direction substantially perpendicular to the direction in which the treatment elements move close to and away from each other. The treatment elements (91-94) are attached to the ends of the arm members (15, 16) so as to be rotatable around the axes of extended lines (L) extending along the direction in which the arm members (15, 16) extend, and also rotatable around axes in a direction substantially perpendicular to the extended lines (L).提供一種能夠帶來舒適的揉按感或按摩感、並且能夠抑制在將施療件覆蓋的罩上發生損耗的按摩裝置及具備此按摩裝置的椅子型按摩機。本發明具有具備施療件(91至94)且在左右配備有一對的按摩構件(10、11)、以施療件(91至94)在左右方向靠近離開的方式使按摩構件(10、11)中的至少一方動作而產生揉按動作的按摩機構(12);按摩構件(10、11)具備朝向相對於靠近離開的方向大致正交的方向延伸的臂構件(15、16);施療件(91至94)以繞沿著臂構件(15、16)的突出方向延伸的延長線(L)的軸心旋轉自如且也繞相對於延長線(L)大致正交的方向的軸心旋轉自如的方式安裝於臂構件(15、16)的前端部。1‧‧‧按摩裝置10‧‧‧按摩構件11‧‧‧按摩構件15‧‧‧左臂構件16‧‧‧右臂構件17‧‧‧第1旋轉軸18‧‧‧插通孔19‧‧‧插通孔20‧‧‧傾斜旋轉構件22‧‧‧第1軸體23a‧‧‧圓筒體23b‧‧‧第2軸體24‧‧‧揉按馬達25‧‧‧振動阻止機構27‧‧‧軸承28‧‧‧軸承29‧‧‧自由接頭30‧‧‧連杆31‧‧‧第2旋轉軸32‧‧‧基座構件33‧‧‧敲擊馬達34‧‧‧齒輪35‧‧‧軸承36‧‧‧偏心驅動體38‧‧‧引導輥91、92、93、94‧‧‧施療件
