Nowadays,　many　scholars　have　been　studied　the　normal　force　of　MRF　in　the　uniform　magnetic　field.　However,　the　research　on　the　normal　force　of　MRF　in　the　non-uniform　magnetic　field　is　relatively　limited.　The　non-uniform　magnetic　field　can　cause　the　MRF　to　generate　normal　force　of　different　sizes　and　directions　to　cope　with　different　working　conditions,　thus　the　normal　force　generated　in　the　non-uniform　magnetic　field　require　more　attention.　In　this　paper,　a　theoretical　model　of　the　normal　force　of　MRF　in　the　non-uniform　magnetic　field　was　developed　based　on　the　enhanced　magnetic　dipole　model.　The　normal　force　of　MRF　within　a　unit　area　can　be　calculated　based　on　this　theoretical　model.　However,　the　magnetic　induction　intensity　is　different　at　different　locations　of　the　non-uniform　magnetic　field,　which　leads　to　the　normal　force　generated　by　the　MRF　are　not　accurately　calculated.　Therefore,　it　is　necessary　to　use　COMSOL　to　establish　the　material　model　of　the　MCR-302　plate　rheometer　and　MRF　to　verify　the　accuracy　of　the　proposed　model.　Then　a　flat-plate　rheometer　was　used　to　test　the　static　normal　force　of　the　MRF　in　the　non-uniform　magnetic　field.　Finally,　the　simulation　and　experimental　data　were　compared.　The　results　show　that　the　simulation　result　with　the　experimental　data　is　a　good　agreement,　which　verifies　the　reliability　of　the　theoretical　model.　The　static　normal　force　of　the　MRF　increases　with　the　increase　of　volume　fraction　and　magnetic　field　intensity.　©　2024　Elsevier　B.V.