Abstract: In order to understand geology and geochemical mineralization characteristics, the authors used the method of R?type factor analysis to conduct statistical analysis of the data obtained from geochemical survey in Yulonggou area. Five representive types of factor combinations were extracted, geochemical zone division was carried out according to the score value of each factor, and element combi?nation zone diagram was also drawn. On such a basis, the geochemical statistical information, reflected by stream sediment survey in the work area, can be shown in a diagram in the form of zone divisions. An analysis of this diagram can not only reflect the geochemical implications but also demonstrate the background value characteristics of corresponding elements.