Concentrations of total suspended sediments (TSS) and transparency (SDD) are important indicators of water quality.In order to determine them of inland water using remote sensing, field hyperspectral data and water samples were collected in the Shitoukoumen Reservoir of Changchun on April 27 and June 28, 2006.The serious soil erosion upriver led to close exponential relationship between TSS concentrations and secchi disk transparency (correlation coefficient was -0.80), which facilitated the estimation of secchi disk depth (SDD) with TSS concentrations.It was found that the first-derivative model at 590 nm gave the best result to estimate TSS (determination coefficient R² was 0.76 and root mean square error (RMSE) was 9.09mg/L).The estimate result could be used to calculate the SDD (R² and RMSE of the model were 0.79, 0.12m respectively at significant level P<0.01).Although the method presented here fits the data for Shitoukoumen Reservoir of Changchun, further analysis of reflectance in relation to water quality should be required from numerous geographic regions before universal equations could be established.