Abstract: The image processing of gravityand magnelic data is superior the method ofcommon i;ograms in faster. executing, figuredresult, more information and easy systhesizing,used the technique of image processing of gravity and magnelic data suported by S600 imageprocessing system, authors get a series of goodfiguration image of Fuyang-Fengtai nappe in Huainan coalfield，which demostrates that sucha iechniqre effective on study of structure ofburied coalfield.