HJ-1 satellite system has two optical CCD sensors, which can support real-time data for environment monitoring because of its high temporal resolution, so that there is great potential in investigating inland lake water quality parameters by this system. To effectively monitoring water quality by CCD images, corresponding methods on atmospheric correction should be developed. Using quasi-synchronous MODIS images as an ancillary datum, Lake Taihu was divided into two parts, that is, northern part and the oth-er part. Then, radiactive transfer model was used to develop the atmospheric correction method for satellite FJ-1 CCD images. The satellite HJ-1 CCD images on April 17th, 21st, and 25th of 2009 were processed through this atmospheric correction method. Re-salt shows that this method that is no longer depending on simultaneous measurement of atmospheric parameters, has overcome the defects of traditional atmosphere corrections by directly using MODIS products. Satellite FJ-I CCD image data can be processed more quickly and efficiently this method. Devised by aerosol types, the corrected remote sensing reflectance is more accurate than that by using other methods such as 6S model and dark-object method.