The construction of a number of dams in the Changjiang River basin (and in particular, large dams in the mainstream) has led to a sharp reduction in the amount of suspended sediment transported from the basin to the sea. This study was instigated to determine the effect on adjacent waters from a change in sediment source, and the paper focuses on spatial and temporal variations in suspended sediments from the Yangtze Estuary to Zheji-ang-Fujian Provincial coastal sea obtained from remotely sensed data. A reliable model is established (according to in-situ measurements in different seasons during 2014) to extract suspended sediment concentration (SSC) from Terra- moderate resolution imaging spectroradiometer (MODIS) images, and the SSC transport mechanism is stud-ied based on results of these analyses. Results reveal that the transportation of suspended sediment from the Yangtze Estuary to the south coast has an obvious seasonal variation and is driven by the monsoon and coastal ocean cur-rents. In spring, suspended sediment is transported as a strip from the Yangtze Estuary to Zhejiang-Fujian Provincial coastal water, and in late spring the suspended sediment transport is interrupted by Wenling coastal waters. In summer, a large amount of suspended sediment is left stranded in the Yangtze Estuary and the Hangzhou Bay:these interruptions are obvious. In autumn, a continuous coastal suspended sediment strip gradually forms between mid-October and late November. In recent years, under the influence of reducing suspended sediment from the river basin into the estuary, the continuous suspended sediment strip in winter has been broken off prior to spring and recovery has been delayed in autumn.