Abstract:In this paper the scan manner of the Moderate Resolution Imaging Spectroradiometer-EOS/MODIS has been illustrated. Based on it the cause of bowtie effect can be illuminated. After analyzing the format of 02 level product-HDF file of EOS/MODIS data set, the MODIS datum on July 13,2002 near the Poyang Lake is read,interpolated,Lambert projected and resampled. By these processes the bowtie effect which can affect the availability of EOS/MODIS data set is eliminated obviously, at the same time, the geometric correction of EOS/MODIS data has been finished. It is a meaningful attempt for the broad usableness of EOS/MODIS data in the future.