The present invention relates to a book label keeper of a new structure which can be used by easily detaching a protective film. The book label keeper according to the present invention forms a label keeper sheet (10) in a long strip shape to be rolled in a reel shape, and arranges the protective film (20) to be separated in a certain distance in the longitudinal direction of the sheet (10) to be used by being installed on a labeler (4) which is generally used. Therefore, the book label keeper has an advantage of more easily detaching the protective film (20) compared with detaching of the protective film (20) with the hand.
