Qingzhen Hongfeng Lake is located in Qingzhen District, Guiyang City, with a width of about 8 kilometers from east to west and a length of about 13 kilometers from north to south. It is a protected drinking water source, of which the lake area of the reserve is about 291 square kilometers. In order to monitor and analyze the water quality of the wide lake area and the basin area, an inversion model for the total phosphorus concentration of Qingzhen Hongfeng Lake Using Hyperspectral satellite images is introduced.Through the correction of reflectance and correlation coefficient at the red band (670 nm), the principal component redundancy data are filtered by floating-point calculation. After the inversion of total phosphorus concentration in six target areas in March, April and May 2020 and the verification of water biochemical parameters collected on the spot, the average precision of the inversion model of total phosphorus concentration in this water quality is 87%, The inversion data based on the model can basically be used to analyze the temporal change of total phosphorus concentration in Hongfeng Lake, and provide effective data for water ecological environment monitoring.