Abstract: Based on the meteorological observations at 81 stations from 1960 to 2011, the icing accidents occurred along the 220-500 Kv high voltage AC transmission lines from 2004 to 2012 and the 9 kinds of geographic data such as altitude, slope, aspect and so on over Hubei province, we have put forward the icing criteria for wind gap, prominent mountain, windward slope, and leeward slope, analyzed the influence of topographic factors to ice accretion, and made a topographic correction to division of wire icing area in Hubei. Results are as follows. The criteria for wind gap is that the day numbers of daily mean wind speed of greater than 8 m?s-1 exceed 1.56 d?a-1 in winter (from December to February). For the aspect of windward slope it is 0°-45° or 315°-360° and with slope of larger than 10°, while for the aspect of leeward slope it is 135°-225°, with slope of larger than 10°, too. For prominent mountain it is that the topographic undulation is larger than 200 m and with an altitude of greater than undulation. Topographic-correction coefficients of wind gap, windward slope, leeward slope, and prominent mountain are 1.75, 1.62, 0.68, and 1.82, respectively. Leading meteorological factors of affecting icing process are wind speed at the meteorological stations located at wind gap, precipitation at the meteorological stations located at windward slope, and liquid water content at the meteorological stations located at prominent mountain. Air temperature is the most important meteorological factor in all of these three special topographies. The division map of wire icing area in Hubei after the topographic correction can better show the serious icing places in the southwest, central, and west areas of Hubei province affected greatly by special topographies.