A housing tool suppresses rotation of a tubular body in a winding direction that holds an elongated medical body in a packaging body, and suppresses deformation of a distal end portion of the elongated medical body. The housing tool includes a tube-shaped holder that is wound in a circular shape for holding a guide wire, a fastening member that fixes adjacent portions of the wound holder, and a mounting member that includes engagement portions and to be engaged with the fastening member, reaches an outer side of a circle of the holder wound in a circular shape, and covers an end portion of the holder from which the guide wire is derived.
