The utility model provides a kind of dustproof device for decoration hole, it is related to decoration tool technical field, the dustproof device for decoration hole includes supporting member and sheltering member, the supporting member is limited to part, the bottom surface of the limiting part and the top surface of decoration board are in
abutment;The sheltering member is connected with the supporting member, the sheltering member is compatible with the decoration hole on the decoration board, for the sheltering of the decoration hole;The utility model is cooperated by supporting member and sheltering member, not only firm installation, strong anti-interference ability, but also can guarantee close fitting when using, dustproof effect is remarkable, while simple structure, convenient operation, adaptive flexible, strong versatility.