In this paper, the concentration distribution laws of the organic C (TOC), organic nitrogen (TON), phosphorus (TP), humic acid (HA), sulphide (S), ignition loss (IL) and anionic surfactants (AS) in sediments in Haihe Estuary and their environmental characterization were discussed. The average concentration values of each component in the region of Dagu sewage outfall are the highest, but the concentrations in the outlet section of Yongdingxin River are in about the same level as that in inshore area by comparing the three region of the estuary. However,. the concentration levels of organic components in this estuary are not any higher as compared with that in some bays in Japan. This may be attributed to the lower background value and higher silt discharges. The background concentration in the sea area of this region were esti-mated to be TOC-0.7%, N一0.08%, TP一一0.06% on the basis of the regional history data. The regional distribution patterns of organic components shows the main sources of organic pollution in inshore estuary sediments are Dagu and Beitang outfalls, and the pollution in Dagu. is stronger than in Beitang. The high current velocity in river is the primal factor that makes the concentrations of the pollutants lower in the sediments of Yongdingxin River. The pollutants enriched in suspensates are carried to Beitang estuary to settle. The decay rates K of the components TOC, TON and HA in the sediments of outfall section are approximately the same 0.029, 0.04 and 0.031, respectively. There exists distinct positive correlation between the concentration of AS and TOC, HA, S, TP as well as TON, but the relation between AS and IL is not clear. It is possible to use the AS correlation analyses to identify the sources of some components and their relation with the sewage.