Through analysis of the soil development indices of 22 soil profiles developed under the modern climatic conditions of China and then correlation analysis, transfer functions were established between soil development indices and climate factors and used in reconstructuring paleoclimatic parameters of the paleosol profiles in the Fenghuang Mountain of Chaoyang, Liaoning Province. The following paleoclimatic parameters of the past 71 ~ 423 ka BP were obtained, including the mean annual precipitation being 523.92~574.42mm and the mean annual temperature being 10.6~11.0℃in 403 ~ 423 ka BP; 1184.６~1277.２mm and 15.6~16.6℃ in 311 ~ 403 ka BP; 517.24~669.08mm and 9.18~12.2℃ in 243 ~ 311ka BP; 1302.7mm and 16.5℃in 225 ~ 243 ka BP; 642.54~731.42mm and 10.1~11.６℃in 208 ~ 225 ka BP; 1231.4mm and 16.0℃in 176 ~ 208ka BP; 640.49~682.09mm and 8.49~9.13℃in 148 ~ 176ka BP; and 1128.2~1294.0mm and 16.1~16.6℃in 71 ~ 148ka BP. Now the mean annual temperature is 9℃ and the mean annual precipitation 450～500mm in Chaoyang, Liaoning, which indicates that although the climate of this area fluctuated greatly several times in the past 420,000 years, a general tendency is clear that the climate in that region is evolving from warm and humid to cold and arid.