Combining with mine rock analysis report,we studied the molybdenum deposits of trace element of the molybdenum deposits systematically and compared the accumulation regularity of strata, mining quartz porphyry and white granite of trace elements comprehensively based on the previous prospecting material. The results showed that compared with the strata,content of Mo in igneous rocks was far higher than the crustal abundance. Quartz porphyry,in which the average content of Mo 26. 67 × 10^-6,and the concentration Clark value of 17. 78,was strongly enriched Mo,so we hold that the forming materials derived from magmatic rocks.