The invention discloses a carton sleeving device. The carton sleeving device comprises a carton sleeving machine frame, a carton ceiling vertical moving mechanism, an inner carton conveying belt, an inner carton supporting platform, an outer carton conveying belt, a carton waist holding conveying belt, a carton sleeving clamp and a clamp lifting air cylinder, wherein the inner carton conveying belt, the inner carton supporting platform, the outer carton conveying belt, the carton waist holding conveying belt, the carton sleeving clamp and the clamp lifting air cylinder are installed in the carton sleeving machine frame. The inner carton conveying belt, the inner carton supporting platform and the outer carton conveying belt are all installed at the bottom of the carton sleeving machine frame, wherein the inner carton supporting platform is located in the middle portion, the outer carton conveying belt and the inner carton conveying belt are located on the left side and the right side of the inner carton supporting platform correspondingly, and the upper end face of the inner carton conveying belt, the upper end face of the inner carton supporting platform and the upper end face of the outer carton conveying belt are all located in the same plane. According to the carton sleeving device, automatic carton sleeving is adopted, the labor intensity of workers is substantially relieved, a carton logistics transportation system is established and perfected conveniently, and traceability management is achieved.