A medical tube holder includes: a holder body having a through hole therein through which a medical tube is passed； and a contact means provided in the holder body in a direction of narrowing a width of the through hole to increase a frictional force with an outer circumferential surface of the medical tube, wherein the contact means is brought into close contact with the outer circumferential surface of the medical tube passed through the through hole, such that the holder body is fitted over the medical tube.
