In　order　to　study　the　multi-degree-of-freedom　coupling　problem　in　the　magnetic　levitation　platform　system,　a　design　idea　of　using　passive　force　between　permanent　magnets　to　reduce　the　active　control　in　the　vertical　direction　is　proposed,　and　the　structure　design　of　a　repulsion　maglev　platform　is　given.　The　stator　of　the　magnetic　suspension　structure　studied　is　composed　of　permanent　magnet　and　electromagnetic　coils.　Its　characteristic　is　that　the　permanent　magnet　provides　the　main　suspension　force,　and　the　electromagnetic　coils　provide　the　horizontal　driving　force,　so　as　to　reduce　the　number　of　coils　responsible　for　active　suspension,　and　reduce　coil　power　consumption　and　heat　generation.　Firstly,　the　Laplace　equation　satisfied　by　the　scalar　potential　was　derived　based　on　the　magnetic　charge　model,　the　analytical　expression　of　the　scalar　potential　was　obtained　by　using　the　separation　variable　method.　And　the　force　of　the　float　in　the　whole　magnetic　field　was　accurately　calculated.　Next,　the　stable　region　of　passive　suspension　force　between　stator　and　mover　permanent　magnet　was　fully　studied　and　discussed,　the　decoupling　of　the　force　in　the　vertical　direction　was　simplified　and　ignored,　and　the　mathematical　model　of　the　controlled　object　was　established.　The　digital　integrated　controller　centered　on　the　micro-control　unit　was　developed.　The　levitation　performance　of　the　platform　was　studied　by　experiments.　The　research　results　show　that　the　hybrid　repulsion　maglev　platform　proposed　in　this　paper　can　realize　the　stable　motion　control　of　the　above　float　within　the　horizontal　range　of　±　4　mm　of　the　suspension　height　of　23　mm,　and　can　realize　the　stable　horizontal　motion,　and　the　displacement　change　of　the　float　in　the　vertical　direction　does　not　exceed　0.2　mm.　Copyright　©2022　JOURNAL　OF　SOUTHWEST　JIAOTONG　UNIVERSITY.　All　rights　reserved.