An electromagnetic field analysis apparatus includes an information input device configured to input information as to wirings and components of an analysis object and a modeling device configured to generate a simulation model of the analysis object based on the inputted information as to wirings and components of the analysis object. A model simplification device simplifies the simulation model into a simplified simulation model by dividing the analysis object according to the simulation model into a plurality of cells and thinning out, when a plurality of elements are included in a cell, the plurality of elements.