Abstract: Fine sediment can be transported by marine processes in the form of suspended load, resulting in coastal and inner shelf erosion and accumulation. The system of the abandoned Huanghe delta to the middle Jiangsu tidal flat is idealized area for the study of the process-product issues of source-sink systems. The abandoned Huanghe delta suffering severe erosion is the source part of the system. And the fine sediments suspended by the tidal and continental circulation currents were transported alongshore and finally sinked on the middle Jiangsu tidal flat. At the present study, vertical profiles of current velocities, turbidity and salinity were measured on an hourly basis of 25 hours at two stations on the inner shelf out of the Xinyanggang, Jiangsu Coast. The observation results show that, the inner 6 km area of the shelf is characterized by high suspended sediment concentration and the strong southward suspended sediment fluxes. However, the suspended sediment concentration and the suspended sediment flux are reduced to 1/3 and less 1/10, respectively, at the station about 12 km away from the coast. The southward net sediment flux is estimated as about 4.60?08 kg per day with the winter spring tide condition, which can be compared with the erosion mass of the north part of Jiangsu Coast