Present paper gives the content and distribution of trace elements,including Mn,Ti,Cu,B,Cr,Zn,Mo,Co,Ni,V,Sr,Ba,Pb and Sn,in soil profiles and parent materials of north-eastern China and eastern Inner Mongolia.Geographical distribution of Cu,Mn, Mo,Zn,B and Co in this region has also been studied.111 soil profiles (360 soil samplcs) were examined for the above purposes.The average content of total trace elements in various soil types are given below:Mn 840 ppm,Ti 6,500 ppm,Cu 22 ppm,B 46 ppm,Cr 103 ppm,Zn 85 ppm,Mo 2.2 ppm,Co 23 ppm,Ni 51 ppm,V 92 ppm,Sr 270 ppm,Ba 570 ppm,Pb 26 ppm,Sn 6 ppm.