Contents of heavy metals in sediments from outfall of Shaoguan Smeltery and the entrance of North River basin were determined.The pollution of heavy metals were assessed using index of geoaccumulation.Contents of heavy metals were evaluated by analyzing the correlation.Results indicated that average contents of heavy metals in the sediments(except Sr)from outfall of Shaoguan smeltery and the entrance of North River basin were more than background value.Contents of Tl increased with the increase of sediment depth,while most of heavy metals presented the irregular fluctuation change in vertical profile.It reflected heavy metals deposited presenting nonlinear turmoil in the environment.The changing of contents of heavy metals in the entrance of North River basin was 9-15cm>0-4cm>4-9cm.According to geoaccumulation index,heavy metal of the two sediments were very polluted by Cd、As、Cu、Zn、Pb、Sn、Sb and more severe polluted by Tl、Cr.The contents of Tl were significantly correlated to the contents of Cd in the sediment of outfall of Shaoguan Smeltery,and the correlation between the contents of Tl and Co、Ni、Cd、As、Cu、Zn、、Sn、Sb was significant.It showed that these heavy metals were homologous.