To provide an auxiliary member of a slope member capable of improving getting on and off of a wheelchair or the like according to a place where a slope member is bridged.SOLUTION: A grounding assisting member for connecting to the lower end portion of the main slope member or for placing the lower end portion of the main slope member, wherein the grounding assisting member comprises an inclined surface portion, And a connecting portion extending from the main slope member toward the main slope member, wherein the upper surface is a gentle slope that is horizontal or gentler than the slope surface, and the lower end of the main slope member And a connecting portion or a placing portion with the portion.BACKGROUND OF THE INVENTION【課題】スロープ部材を架け渡す場所に合せて車椅子等の乗降性を改善できるスロープ部材の補助部材の提供を目的とする。【解決手段】主スロープ部材の下側端部に連結するため、又は主スロープ部材の下側端部を載置するための接地補助部材であって、前記接地補助部材は斜面部と、当該斜面部から前記主スロープ部材側に向けて延在するつなぎ部とを有し、前記つなぎ部は上面が水平又は前記斜面部よりも緩やかな緩斜面であり、且つ、前記主スロープ部材の下側端部との連結部又は載置部を有することを特徴とする。【選択図】 図1