A walking aid device includes a support body inclusive of a plurality of support elements extending toward the ground. Each support element is coupled to a caster and a brake unit. Each brake unit has a clutching surface. The clutching surface controllably clutches a wheel of the caster or the ground to thereby generate friction for stopping the walking aid device.一種人體步行輔助裝置,包括有一支撐本體,其朝地面伸設有複數個支撐件,各支撐件分別與一輪組及一剎車組件對應組設。其中各剎車組件分別具有一抵制面,此抵制面可經控制而抵制於對應之輪組或地面,藉此產生摩擦力而形成剎車。11‧‧‧支撐件12‧‧‧第一中空部13‧‧‧彈簧21‧‧‧輪子22‧‧‧叉件221‧‧‧第一導柱222‧‧‧第二中空部31‧‧‧第二導柱32‧‧‧凸緣33‧‧‧固定螺絲34‧‧‧翼片35‧‧‧第一抵制面4‧‧‧地面
