Abstract: In order to optimize the prospecting target area in the south of Wutongjing in Ejina Ban⁃ ner，Inner Mongolia，a 1∶10 000 soil geochemical survey was carried out on the basis of understanding the basic geological characteristics of the mining area. A total of 1 521 soil samples were collected to ana⁃ lyze the variation coefficient，concentration coefficient and enrichment coefficient of 11 elements includ⁃ ing Cu，Ni，Co，Cr，Pb，Sn，Zn，Mo，W，Sb and As.It shows that Cu，As and W are favorable metallogenic elements. Through the R-type factor analysis of 11 elements，the elements are divided into four combina⁃ tions of F1（ Cr-Co-Ni），F2（Cu-Zn-Mo-Pb），F3（Zn-W）and F4（Sb-As），and four prospecting predic⁃ tion targets are delineated by the contrast anomaly method.

Key words: soil geochemistry, anomalous characteristics, contrast value anomaly method, prospect? ing prediction