The Xiatong Mountain in Zhejiang Province is in the eastern part of the Qin-Hang metallogenic belt, where tungsten molybdenum mineralization phenomena have been found in the contact zone of the rock mass. According to the 1:5000 soil measurements in 2012, lead and zinc content is very high in carbonate formation which belongs to Banqiao Mountain strata, which are the key strata of lead and zinc deposits in the region. The results obtained show that lead and zinc anomalies in this area could be considered as the key anomalies related to mineralization. In consideration of the facts that the anomaly concentration areas of lead and zinc are distributed in the south of carbonate formation instead of having to do with the rock mass, mineralization phenomena at the surface are not obvious, and discontinuous oxidation cap could be observed, it is inferred that the lead and zinc anomalies might be caused by secondary enrichment. In order to make a further study of the genesis of the anomaly, the authors chose exploratory trench rock and soil samples to make a comparative study of lead and zinc values. It is found that the content of lead and zinc in soil is significantly higher than that in the rock. Then the authors chose three section lines to conduct a soil element content research, and the results show that the distribution of Pb, Zn and Fe, Mn has much to do with the concentration-dilution relationship. On such a basis, it is concluded that the Pb, Zn anomalies here have no mineralization significance, and they are false anomalies caused by the carbonate weathering secondary enrichment.