An arch pad, comprising: a half palm rest, a front groove having a groove, a rear portion having a heel support portion; and a spacer detachably disposed in the groove of the half palm rest; thereby, the user can Replace the gaskets with different curvatures to achieve the purpose of user-adjusted adjustment of the arch.一種足弓墊,其中包括:一半掌墊,前段具有一凹槽,後段具有一腳跟支撐部;及一墊片,可拆卸的設於半掌墊的凹槽中;藉此結構,使用者可更換不同曲度的墊片,藉以達到方便使用者循序漸進的調整足弓的目的。