Present paper deals with the total contents of trace in forest soils (great groups or sub-eroups) developed from different parent materials in Western Sichuan and Northern Yunnan.This regions,including the Hengduan mountains,is one of the most famous regions of high mountains and deep gorges in the world.The total mateats of Sr,Ba,Mo,Cu,Mn,B,Co,Zn,Ti,Cr,V,Ni,Pb and Sn in parent materials were determined.Such trace elements as B,Mo,Mn,Zn and Co in parent materials of the majority of forest soils in this region are more abundant.In general,the contents in the parent materials are higher than the average contents in lithosphere (or earth's crust) with the exception of Si and Ti.