In order to survey the content of lead, copper, cadmium and mercury in crude drugs, 300 samples were analyzed. Sample were prepared by Sulfuric acid-Nitric acid digestion for mercury or by the method of residue on ignition determination for lead, copper and cad- mium, then determined by AAS. The results are: lead: from ND (Not Detected) to 26.48ppm; copper: from ND to 19.48ppm; cadmium: from ND to 1.2ppm; mercury: from ND to 0.554ppm.