The invention relates to a denture space maintainer, the rear end of the maintainer is provided with an arc-shaped fitting part, the lower ends of both sides of the fitting part are respectively extended forward with a supporting part, and the front end of the two supporting parts is connected with a resisting part, the maintainer is fixed between the teeth on both sides of the denture missing part, and the teeth on both sides of the denture missing part are supported by the maintainer to maintain the denture space of the denture missing part.本創作係有關一種缺牙空間維持器,該維持器之後端具有弧狀貼合部,於貼合部之兩側下端各向前延設有一撐持部,而該二撐持部之前端係接設抵擋部,將維持器係固置於缺牙部位兩側牙齒之間,藉由維持器將缺牙部位兩側牙齒頂撐住,以維持缺牙部位缺牙空間。