A kind of hand metacarpophalangeal rehabilitation exercise device,Most interval modules including being equipped with most cooperation human body phalanges,By most most group segment type interval modules of module string composition； Each group of segment type modular structure is passed through with most individual elastic branch pieces,Make branch piece one end fixing end,The other end is movable end,Gearing is engaged with a driving mechanism； Rehabilitation finger is positioned into what interval module,Finger is driven to be pulled with buckling (flexion) movement by driving mechanism,Right Hou is displaced driving mechanism reversely,Stretching, extension (extension) movement is formed through the elastic restoring force of branch piece stress bending Hou,So as to which rehabilitation practice activity can be carried out before affected part forms rigid or other adverse effects.一種手部掌指復健練習裝置，包括設有多數配合人體指骨的多數間隔模塊，將所述多數模塊串組成多數組分節式間隔模塊；以多數個別彈性支片穿過每一組分節式模塊結構，使支片一端為固定端，另一端為活動端，與一驅動機構接合連動；將復健手指定位於間隔模塊，由驅動機構驅使手指以屈曲（flexion）動作引拉，然後使驅動機構反向位移，透過支片受力彎曲後的彈性恢復力形成伸展（extension）動作，從而可在患部形成僵化或其他不良影響前即可進行復健練習活動。
