The invention relates to a label delivery device which is used for an in-mold labeling system. The label delivery device comprises a fixed rack and a label supply mechanism and a label feeding mechanism which are arranged on the fixed rack, wherein the label supply mechanism comprises a label fixing plate and a guide member arranged on the label fixing plate and used for guiding the label stacking direction, the label fixing plate is arranged on the fixed rack, a through hole for a label to penetrate is formed in the label fixing plate, a label feeding assembly is located at one side, far away from the guide member, of the label fixing plate, the label feeding mechanism comprises a rotating assembly and a label sucking assembly used for taking and placing the label, the rotating assembly is rotatably arranged on the fixed rack, the label sucking assembly is arranged on the rotating assembly, and after being sucked by the label sucking assembly at the through hole, the label is rotated to a preset position by the rotating assembly. The label delivery device is relatively high in production efficiency, relatively simple in structure and relatively small in occupation space.