A kind of movable adjustment seat is to apply in an electric wheelchair, by the tilt variation of the horizontal sensing units sense horizontal sensing unit of a control mould group itself. The horizontal sensing unit makes the control mould group control one first motor, one the first adjustment axis of drive, and one second motor of control drives the second adjustment axis. The first adjustment axis and the second adjustment axis control the inclination angle of a cushion different directions respectively, the ride surface of the cushion is set to reach parallel with horizontal plane, prevent the electric wheelchair when inclined road surface is advanced, occupant from the electric wheelchair fall or any sitting posture caused by discomfort.一種可動式調整座椅，是應用在一電動輪椅，其藉由一控制模組的水平感應單元感應該水平感應單元本身的傾斜變化。該水平感應單元使該控制模組控制一第一馬達帶動一第一調整軸，以及控制一第二馬達帶動該第二調整軸。該第一調整軸和該第二調整軸分別控制一坐墊不同方向的傾斜角，使該坐墊的乘坐面與水平面達到平行，防止該電動輪椅在傾斜的路面行進時，乘坐者自該電動輪椅跌落或任何坐姿引起的不適。
