To effectively and dynamically monitor the concentration of suspended particulate matter produced by dredging projects in harbor waters with high spatial and temporal resolution,this study utilizes the advantages of the geostationary satellite GOCI II,and based on the single band and the band ratio,the inversion bands are selected through parametric correlation analysis.According to the measured suspended particulate matter concentration data of water quality samples and the remote sensing reflectance data after satellite remote sensing image preprocessing,the parameter correlation analysis method is used to select the inversion band,and the exponential,linear,logarithmic and polynomial inversion models based on single band and band ratio are established,and the optimal model is selected and verified.The model is used to monitor the variation of suspended particulate matter concentration in the channel maintenance dredging operation water area and the dumping water area of a port area on a certain day.The results show that the advantages of high spatial and temporal resolution can better adapt to the characteristics of dredging operation area and dumping area with small range and rapid water quality change.It can track and monitor the continuous change of suspended particulate matter concentration in the project area and surrounding waters,and provide reference for green dredging.