This study was performed to investigate the present contamination level of heavy metals in freshwater fishes in North Han-river Contents of heavy metal in the parts were found respectively by the Atomic Absorption Spectrophotometer. The results were shown as follows: 1. The order of mean value of lead, cadmium and chromium contents in the three parts was shown as bone>gill>muscle respectively. Content of mercury in muscle showed highest in comparison with the other parts. 2. Among the seven heavy metal contents, the highest was zinc and the lowest was cadmium. 3. Among the three kinds of fishes Cyprinus carpio has highly significant correlation with fish size in lead and cadmium.