To provide a thread filling tool which facilitates loading of a beauty thread material, since a notch groove is provided at a side edge of a main body.A notched groove is provided between a plug-in end and a grasp end, and the cut-out groove is formed in a portion of the main body A main body having an opening, a main body having an opening, a retaining groove provided in a side edge of the main body and located in the vicinity of the inserting end and communicating with the notched groove, And an entry hole located in the vicinity of the grip end and communicating with the notch groove, wherein the beauty thread material can enter the notch groove from the entrance hole and be accommodated in the notch groove There, one end is located in the entrance hole, and the other end is hooked in the engagement groove.(FIG.【課題】本体の側縁に切欠き溝が設けられているため、美容糸材のローディングが容易となる糸埋め工具を提供する。【解決手段】差込端と、差込端の反対端に位置する握り端と、を有し、差込端と握り端の間に切欠き溝が設けられており、切欠き溝は本体の軸方向に沿って設けられており、開口を有する本体と、本体の側縁に設けられており、差込端の近傍に位置し、切欠き溝と連通する係り溝と、本体の側縁に設けられており、握り端の近傍に位置し、切欠き溝と連通する入り穴と、を含み、美容糸材は、入り穴から切欠き溝に進入して、切欠き溝に収容され可能であり、その一端が入り穴に位置し、その他端が係り溝に引っ掛けられる。【選択図】図1