The utility model discloses a book shelf with a bookend. The book shelf comprises a book shelf bracket and a book shelf partition board, a bookend is arranged on the book shelf partition board and comprises a slide block at the bottom and a bookend plate transversely hinged with the upper surface of the slide block, a stop block fixedly connected with the slide block is arranged on one side surface of the bottom of the bookend plate, an auxiliary plate fixedly connected with the slide block is horizontally arranged on the other side surface of the bottom part of the bookend plate, a strip-shaped through groove is transversely formed in the middle of the book shelf partition board, a slide rail is respectively arranged on the two sides of the strip-shaped through groove, a pulley is respectively arranged on the two sides of the slide block, the pulleys are clamped in the slide rails, and a round through hole is formed at one end of the strip-shaped through groove. The book shelf with the bookend has the advantages that an extra bookend needs not to be allocated, so that the extra space occupied by the extra bookend is saved, and the loss of the extra bookend left about is also avoided; and furthermore, the space for storing books is not occupied when the bookend is folded on the surface of the book shelf partition board, the beauty of the whole body of the book shelf is not influenced, the bookend is detachable, and the assembly, the cleaning and the replacement of the bookend are very simple and convenient.