A labeling apparatus of the present invention is constituted by: at least three support rollers which come into contact with the outer surface of the vial to rotate; an arm for rotatably supporting the support rollers; a rotation unit (rotation rollers) for rotating the vial held by the support rollers; a label supply unit for supplying labels to be attached on the outer surface of the vial; and an endless member which rotates according to the rotation of the vial between a first support roller with which the label fed from the label supply unit comes into contact first and a second support roller with which the label comes into contact second.