The　discharge　current　of　forming　coil　is　the　most　important　parameter　in　electromagnetic　forming　and　the　key　to　implement　forming.　Based　on　discharge　circuit　analysis　of　electromagnetic　forming,　taking　the　electromagnetic　riveting　for　example,　electric　field-magnetic　field　coupling　model　was　established　by　the　finite　element　method.　The　results　showed　that　the　discharge　current　of　forming　coil　included　the　electromagnetic　repulsive　force　and　attractive　force　discharge　currents.　The　waveform　of　generating　repulsive　force　was　typical　oscillation　decaying　wave,　then　the　waveform　of　generating　attractive　force　was　ascended　slowly　and　descended　quickly　wave.　The　different　technology　processing　of　electromagnetic　repulsive　force　and　attractive　force　can　be　carried　out　by　control　the　change　rate　of　forming　coil　discharge　current.　Effect　of　different　parameters　on　the　forming　coil　discharge　current　was　investigated　systematically　using　the　electromagnetic　field　coupling　model.