Abstract: Eutrophication is a major problem in rivers and lakes all over the world. Regular monitoring of water quality and establishment of appropriate models are of great significance in the effective management of water eutrophication. The purpose of this study is to establish a remote sensing retrieval model for water quality and evaluate the nutrient distribution. of the Ring River.The mathematical model has been established by correlation analysis between the reflection value of Landsat-8 satellite images and the water quality values of field sampling.The results indicated that :（1） The linear model is the best,which can predict the nutrient distribution of the water body,and the fitting degree of the inversion models for total nitrogen,total phosphorus and ammonia nitrogen are 0.823 0,0.635 5 and 0.792 8,respectively；（2）The best correlation between reflection and the measured values are band3 and band 4；（3） From the spatial perspective,the eutrophication level in the north of the Ring River is worse than the south,because it affected by surrounding environment that reside more population,and by the influx from South Fehe River which is polluted more seriously.