The paper discusses the experimental resultsconducted in Luochuan and Baishui orchards on content of certain heavy metals like Pb,Cd,Cr as well as pesticide residue on the bagged apples,double bagged apples and non-bagged apples respectively.There are two results.The content of certain heavy metals and pesticide residue on non-bagged apples are greater than those of bagged ones,while those of single-layer-bagged ones are greater than those of double bagged ones.Heavy metals are primarily concentrated on the appte peel.