The　ventricle　assist　device　has　emerged　as　an　important　therapeutic　option　in　the　treatment　of　both　acute　and　chronic　heart　failure.　The　blood　pumps,　the　major　components　of　ventricle　assist　devices,　have　also　progressed　to　the　third　generation.　The　magnetic　levitation　technologies　have　been　applied　into　the　third　generation　blood　pumps.　This　paper　proposes　a　novel　miniscule　maglev　nutation　pump　with　Magnetic　bearing　based　on　nutation　principle.　The　calculation　formula　of　magnetic　force　is　established　on　the　basis　of　the　research　for　the　operational　principle　of　the　magnetic　bearing.　Through　establishing　and　solving　the　equations,　the　structural　dimension　and　magnetization　intensity　of　the　magnetic　bearing　are　obtained.　Then,　the　three-dimensional　model　of　the　nutation　pump　is　established.　Furthermore,　the　structure　design,　manufacturing　and　assembling　of　the　pump　is　completed.　Finally,　the　simulation　of　the　maglev　nutation　pump　is　carried　out.　And　the　effectiveness　of　the　miniscule　maglev　nutation　pump　is　verified.