The primary halo characteristics of eleven kinds of trace elements (Au, Ag, Cu, Pb, Zn, W, Mo, Hg, As, Sb, Bi) in K6 orebody of the Longmendian silver deposit were studied in order to provide theoretical basis for deep orebody prediction. Pb, Zn can be used as the important indicator elements in the prediction of K4 deep orebody, and ore-forming process has superimposed metallogenic features, as shown by the results of statistical analysis. Through the analysis of the variation law of primary halo geochemical parameters of the orebody, the authors found that the front of the orebody exhibits an obvious strong anomaly of tail halo indicator elements, whereas the center of the orebody exhibits an obvious strong anomaly of frontal halo indicator elements. Axial zoning sequence of the indicator elements is described as follows: W-Mo-Au-Hg-Cu-As-Bi-Zn-Ag-Sb-Pb, assuming obvious frontal halo and tail halo coexisting phenomena and axial zoning characteristica. It is therefore considered that there is a quite large-sized blind orebody in the depth and there is excellent mineralization under 909m level.