A　rotation　coating　technique　was　used　to　apply　Zn　layer　onto　MQP-S　Nd-Fe-B　spherical　powders,　aiming　to　enhance　their　anti　-oxidation　properties　while　maintaining　their　high　magnetic　performance.　As　the　coating　temperature　increases　and　duration　extends,　the　Zn　layer　thickness　grows,　subsequently　leading　to　a　reduction　in　powder　magnetization　primarily　due　to　the　introduction　of　nonmagnetic　Zn.　A　certain　level　of　degradation　of　the　original　Nd-Fe-B　powders　also　occurs　during　coating,　which　appears　to　be　relatively　minor,　as　the　powders　＇　coercivity　remains　almost　unchanged　after　coating.　All　powders　coated　under　different　conditions　effectively　prevent　further　oxidation,　maintaining　almost　unaltered　magnetization　during　high　-temperature　tests.　It　demonstrates　that　rotation　coating　using　lower　melting　point　metals　is　a　simple　yet　effective　method　to　enhance　the　anti　-oxidation　capability　of　Nd-Fe-B　powders.　Moreover,　this　approach　is　easily　scalable,　which　is　important　for　applications　in　fabricating　metal　injection　molding　or　bonded　magnets.