Abstract: To address the calibration of the remote sensing data gained by new generation of polar-orbiting meteorological satellite FY-3,the strategy of using multi-level parallel computing based on the.net framework to accelerate the calibration is introduced. Through the multi-level parallel computing, process the near infrared channel calibration and infrared channel calibration for the remote sensing data gained by Visible and Infrared scan radiometer (VIRR).Finally,it proves that the proposed strategy is feasible by comparing the multi-level parallel computing based on the.NET framework to the serial computing and IDL.