PROBLEM TO BE SOLVED: To provide a rehabilitation support device and a rehabilitation method capable of reducing spasticity of a flexor muscle group of a finger joint and a wrist joint or spasticity of a flexor muscle group of an ankle. SOLUTION: In a rehabilitation support device 10 (10A) for recovering a patient's motor function, a vibrating body 12 that directly moves to flex and extend a finger joint and a wrist joint or an ankle joint of the patient, and a vibrating body 12 are directly moved. A drive mechanism 14 for kinetic movement, a control unit 30 for controlling the operation of the drive mechanism 14, a fixed orthosis 20 (60) which is connected to the vibrating body 12 and is rotatable by fixing a finger or foot of a patient. The fixed orthosis 20 (60) having a bearing 13 that slidably holds the vibrating body 12 and a housing 18 to which the drive mechanism 41 and the bearing 13 are fixed, and to which the finger or foot of the patient is fixed, By rotating while following the linear motion of the vibrating body 12, the patient's finger joints and wrist joints or ankle joints are extended and bent. [Selection diagram] Figure 1【課題】手指関節及び手関節の屈筋群の痙縮、又は足関節の屈筋群の痙縮を減弱させることができるリハビリテーション支援装置及びリハビリテーション方法を提供すること。【解決手段】患者の運動機能を回復させるリハビリテーション支援装置１０（１０Ａ）において、患者の手指関節及び手首関節、又は足関節を屈伸させるために直動運動する振動体１２と、振動体１２を直動運動させるための駆動機構１４と、駆動機構１４の動作を制御する制御部３０と、振動体１２に接続され、患者の手指又は足を固定して回動可能な固定装具２０（６０）と、振動体１２を摺動可能に保持するベアリング１３と、駆動機構４１及びベアリング１３が固定される筐体１８とを有し、患者の手指又は足が固定された固定装具２０（６０）は、振動体１２の直動運動に追従しつつ回動することにより、患者の手指関節及び手首関節、又は足関節を伸展屈曲させる。【選択図】図１
