The climatic characteristics of fog in Linqing were statistically analyzed using the meteorological data observed at Linqing weather station from 1981 to 2010. The results indicated that an obvious decreasing trend of annual foggy days was found in recent 30 years in Linqing. The frequency of fog in autumn and winter was relatively higher than that in spring and summer. The foggy days mainly appeared from October to the next February, accounting for 76.2% of the annual foggy days. The heavy fog usually occurred in night, which contributed 89. 1%, and dissipated mainly at 9 am to 10 am. The visibility and disaster defense of fog were also analyzed in this paper.%利用1981 ～2010年的地面观测雾日资料分析了临清市的大雾气候特征,结果表明:临清市大雾年际变化明显,30年来大雾日数呈现波动下降趋势；秋冬季雾日多,春夏季雾日较少；大雾主要出现在10月至次年2月,占全年大雾总日数的76.2％；大雾多出现在夜间,占总数的89.1％,消散时间多集中在9～10时；分析了大雾的能见度强度及灾害防御措施.
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