Abstract: The spatial distribution of six trace elements(Cu,Ni,Cd,Pb,Cr and Zn) in soil,and their transfer and enrichment in crops,were studied by investigating their contents in the Maling,Xifeng and Huaqing oilfields in the Longdong tableland plateau and in wheat,apple and rape crops.The results showed that the mean content of Zn in the soil was 111.64 mg/kg,which was the highest among the six elements in the tableland plateau.The content of Cd in the soil was 1.64-3.38 mg/kg,while those of the other four elements were between 20 and 70 mg/kg.The crop enrichment coefficients of all the trace elements were less than 1,which indicated a normal enrichment ability of these crops.Furthermore,the enrichment ability of the roots was higher than that of the plant part above ground.