Abstract: The southern China suffered extremely meteorological disaster caused by low-temperature and ice-snow during the last 20 days of January 2008. The frozen-rain and snow are climatically related to the southern China quasi-stationary front in deep winter. The 3-dimensional structure of southern China quasi-stationary front was examined by the coordinate relationship among the weather charts, the profiles of sounding, and vertical cross-section using the method classical synoptic analysis.