Backed by the large-size Dachang Gold Deposit, the authors made a preliminary study of the supergene process in the western part of the cold and high meadow area in Qinghai Province.It has been found that eolian sands are concentrated in-40 ~ +160 mesh and rich in SiO₂,while contents of most elements are very low.Most of the indicator elements for gold deposits are basically concentrated in residual soil and clinosol of-20 mesh and meadow surface soil of-5~+20 mesh,representing proximal sediments.The contents of the gold indicator elements Au,As and Sb tend to decrease in order of bedrock→residual and slope sediments→meadow surface soil→stream sediments,and things are similar for other elements.All this indicates that there exist geochemical processes of impoverishment or homogenization of elements,especially Au,As and Sb,on the surface of cold and high land peneplain-hilly landscape.