In　this　paper,　two　artificial　magnetic　particles　(1#,　2#)　with　known　magnetic　parameters　were　taken　as　the　objects,　a　finite　element　model　based　on　Gauss＇s　law　was　established　for　the　calculation　of　the　transient　Maxwell　magnetic　stress　tensor　on　the　surfaces　of　particles　and　kinetic　study,　a　high-speed　camera　was　used　to　obtain　the　motion　behaviors　of　magnetic　particles　in　comparison　with　the　simulation.　According　to　the　results　of　multiple　simulation-experiment　comparisons,　the　motion　behaviors　of　magnetic　particles　in　the　finite　element　simulation　were　consistent　with　experimental　phenomena　under　the　identical　conditions,　indicated　that　the　accuracy　of　the　model　is　reliable.　In　the　comparison　of　two　kinds　of　magnetic　force　calculations,　the　magnetic　force　F　M　based　on　the　Gaussian　formula　had　a　similar　tendency　to　F　D　based　on　the　kinetic　calculations,　and　since　the　F　M　was　obtained　by　converting　the　surface　tension　of　particles,　it　more　accurately　reflected　the　overall　magnetic　force　and　magnetic　torque　acting　on　the　particles.　Kinetic　analysis　showed　that　the　magnetic　force　acting　on　a　particle　was　strictly　dependent　on　its　magnetization,　dynamic　and　non-uniform　magnetization　caused　the　magnetic　particle　to　be　subjected　to　magnetic　force　and　magnetic　torque　in　the　non-uniform　magnetic　field,　resulting　in　displacements　and　flips.　In　addition,　compared　to　the　particle　release　attitude,　the　influence　of　the　distribution　of　magnetic　substance　and　the　particle＇s　release　position　on　the　displacement　was　particularly　significant.　The　3D　finite　element　model　established　for　dry　magnetic　separation　can　be　further　used　for　the　study　of　dynamic,　non-uniform　magnetization　and　the　force　of　magnetic　particle　or　grain　groups,　which　is　of　certain　significance　for　the　kinetic　study　of　magnetic　separation　and　improving　research　of　magnetic　separation　equipment.