A rehabilitation aid.It can be placed on the ground.For users to rely on and move,The utility model comprises a body and four moving wheels.Among them,The system comprises a plurality of brackets around which a space for the user to stand is defined.The mobile gear trains are connected to the supports,The rehabilitation assistive device further comprises an auxiliary wheel.The auxiliary gear train is connected to the supports.Among them,The auxiliary wheel has a first state and a second state.In the first state,Such mobile gear trains are in contact with the ground,The auxiliary gear train is not in contact with the ground.And in the second state,The auxiliary wheel contacts the ground simultaneously with at least one of the moving wheels.The setting of the auxiliary wheel does not need to be horizontal with the mobile wheel.It can reduce the demand of machining accuracy.The auxiliary wheel can provide a good auxiliary support effect when the body angle changes.Avoid overturning and toppling.Increase the safety of use.一種復健輔助器，其係可放置於一地面，以供使用者藉其倚靠及移位，其包含有一本體及四個移動輪，其中，該本體係包含有複數支架圍繞界定一可供使用者站立的空間，該等移動輪係組接於該等支架上，該復健輔助器更包含一輔助輪，該輔助輪係組接於該等支架上，其中，該輔助輪具有一第一狀態與一第二狀態，於第一狀態時，該等移動輪係與地面接觸，該輔助輪係未與地面接觸，而於第二狀態時，該輔助輪至少與其中之一移動輪同時接觸地面，該輔助輪的設置不需要與移動輪保持水平，可以降低加工精度需求，輔助輪可以在本體角度產生變化時提供一良好的輔助支撐效果，避免本體翻覆傾倒，增加使用安全性者。
