Abstract:Gravity method is an important method to study regional structure. By using gravity forward, the depth of strata interface with certain density difference can be accurately calculated. Through collecting density data and drilling data of rocks in early period in Juye coalfield, by using gravity forward calculating method of 2.5D profile, metallogenic prospective areas in Juye coalfield in the depth of less than -1000 meters have been delineated. This method can provide some references for prospecting sedimentary deposits in other basins.