Abstract: To accomplish operational atmospheric correction of GF-2 image, vector 6S codes were used to calculate scattering and absorption effects in the radiation transfer process, respectively. The former was stored in the look-up tables (LUTs), containing variety of combinations from the atmospheric models, aerosol types, imaging geometry, etc. The latter was expressed as the experience formulas of atmospheric transmittances, calculated in the conditions of six types of atmospheric models. The size of look-up tables was much reduced because of the separated treatment of scattering and absorption. Finally, under the computing test circumstance with 4GB of RAM and 3.10GB of CPU frequency, the running status of the method based on LUTs was compared with that of the atmospheric correction software, FLAASH. Results show that the absolute errors and running time are 0.8% and 2.6%, 77s and 240s, respectively. It illustrates that the LUTs designed here is more suitable for operational image atmospheric correction given the advantage of accuracy and efficiency.