PROBLEM TO BE SOLVED: To provide a blood sampling tube holder with a novel structure including a protector for protecting a blood sampling needle so as to be rotatable relative to a holder part.SOLUTION: In a blood sampling tube holder 10, a protector 15 for protecting a blood sampling needle 12 is connected to a holder part 13 so as to be rotatable. The blood sampling tube holder is provided with a prescribed positioning mechanism 92 for holding the protector 15 to a rotation position where the protector is open.SELECTED DRAWING: Figure 2【課題】採血針を保護するプロテクタをホルダ部に対して回動可能に設けた、新規な構造の採血管ホルダを提供する。【解決手段】採血管ホルダ10であって、採血針12を保護するプロテクタ15と、ホルダ部13とを、回動可能に連結した。そして、プロテクタ15を開状態となる回動位置へ保持する所定の位置決め機構92を設けた。【選択図】図2