Abstract: The latest developments of the remote sensing of lake water quality,such as the mathematic methods for the remote sensing of water quality model,the water quality indicators with the most sensible wave band and applications of TM,SPOT, MODIS,MERIS,AVHRR,CASI etc.,the satellite sensors and the airborn remote sensing,as well as reasons and solution which probably result in the errors of remote sensing of the lake water quality model,are explicated and analyzed. It can be regarded as the most complex and non-linear black-box model for the effect of several components in lake water on each other. Thus it is the most useful for the remote sensing of water quality simulated by Bp ANN. And the sensible band,the ultra-spectrum as well as wave bands clearly associated with water quality indicators should be selected and studied. A good way of making the remote sensing of lake water quality become a practical monitoring method is that water quality remote sensing must be combined with the aquatic eological problems.As a monitoring tool,it would be combined with the algae distribution in water, the nutrient transportation model and the lake water quality model. The ultra-spectrum data is seldom used in China,because the band width for the water quality monitor of sensor is not very suitable in China. We should develop the water quality sen-sors by ourselve.