The invention discloses a tire outer package labeling device and relates to the technical field of product labeling equipment. A conveying belt is arc and is arranged above a worktable. A labeling assembly comprises an arc labeling plate, a rotating shaft, a shaft sleeve and a torsion spring. The rotating shaft penetrates the labeling plate along the left-right symmetric axis of the labeling plateand is fixed to the worktable. The shaft sleeve is arranged on the rotating shaft and is fixed to the top of the labeling plate. The labeling plate is rotationally connected with the rotating shaft,and the torsion spring is arranged between the rotating shaft and the shaft sleeve. The labeling plate is located above the conveying belt. When the labeling plate is static, the positive projection of the labeling plate is intersected with the positive projection of the conveying belt, and an intersecting point is formed. The intersecting point is located on the side, away from a label sending assembly, of the rotating shaft, and a labeling station is located at the position, over the intersecting point, of the labeling plate. When a tire gets close to the labeling station, the tire makes contact with the labeling plate and pushes the labeling plate to rotate, and the labeling station makes contact with the surface of the tire in the labeling process. By means of the tire outer package labeling device, labels can be attached more firmly.