The　bearingless　flux-switching　permanent　magnet　motor　(BFSPMM)　adopts　the　stator　permanent　magnet　structure,　which　is　beneficial　to　the　heat　dissipation　of　the　permanent　magnet　and　reduces　the　risk　of　demagnetization　caused　by　the　temperature　rise　of　the　permanent　magnet.　However,　since　BFSPMM　adopts　the　double-salient　structure,　the　design　method　of　the　traditional　rotor　permanent　magnet　type　motor　with　sine　wave　back　electromotive　force　cannot　be　directly　applied.　Thus,　the　design　of　the　BFSPMM　is　complicated　and　time　consuming.　To　this　end,　this　paper　proposes　a　method　to　quickly　design　the　key　parameters　of　the　BFSPMM,　such　as　optimum　tooth　width　ratio,　electromagnetic　torque,　winding　coupled　permanent　magnet　flux,　suspension　force,　etc.　First,　in　order　to　overcome　the　shortcoming　of　finite　element　time　consuming,　a　new　variable　structure　magnetic　network　model　(VSMNM)　of　the　BFSPMM　is　built　considering　the　eccentricity　of　rotor.　Second,　the　expressions　of　the　optimal　rotor-to-stator　tooth　width　ratio　and　the　coupling　permanent　magnet　flux　linkage　in　power　winding　are　directly　deduced　based　on　the　proposed　VSMNM.　Then,　the　electromagnetic　torque　is　deduced　based　on　the　permanent　magnet　flux　linkage,　and　the　suspension　force　is　deduced　based　on　VSMNM.　Finally,　the　fast　design　method　proposed　in　this　paper　is　verified　to　be　effective　by　the　finite-element　analysis　and　the　experimental　results.