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By using the data from December 2011 to November 2015 in Hebei Province, including the data from 156 traffic meteorological stations along 11 expressways, the fog disasters of 142 meteorological stations, traffic accidents and closingcontrol measures on expressway caused by fog, average daily traffic volume and road network density on expressway, the risk zoning model of fog disaster is established based on the dangerousness of Hazard factors, the spatial fragile and vulnerability of the disaster bodies, and the fog disaster risk zoning map of expressway in Hebei Province is given. The results show: (1) The risk grades of fog disasters on expressways in the northern Hebei Province, the western mountains and the coastal areas of Cangzhou are at the lower level; however, those of fog disasters on expressways in the eastern and southern plains are at the higher level, which can provide a reference for the traffic safety management department. (2) Frequent heavy fog events, traffic accidents and the wide range of fog are the reasons leading to the rising risk grads of fog disasters on expressway.