In this paper, the research object is the use of corrugated carton in packaging low-temperature yogurt, with the focus on hazard factors of external packaging cartons of yogurt in logistics process; on the basis of production, storage and transport links of yoghurt, the factors investigated in this study include relative humidity of storage environment, stock time, storage and stacking, circulation, transportation, handling, loading and unloading procedure; hazard factors and hazard degree encountered in each logistics link are analyzed; finally, the measures to ensure maximum safety and service life of packages of yogurt products are discussed.