All-inorganic　perovskite　quantum　dots　(PQDs)　have　excellent　photoelectric　performance,　such　as　high　photoluminescence　quantum　yield　(PLQY),　narrow　full　width　at　half-maximum　(FWHM),　and　emission　spectra　covering　the　visible　light　wavelength.　The　emission　color　can　be　tuned　over　the　full　visible　spectral　region　making　them　promising　for　white-light-emitting　diodes　(WLEDs).　Further　control　over　the　optical　and　magnetic　properties　of　PQDs　can　be　achieved　through　doping　of　transition　metal　ions　such　asMn2C　ions.　In　this　paper,　a　rapid　doping　method　is　employed　at　room　temperature　by　using　strong-acid　cation-exchange　resin　during　the　metal　ions　doping　process,　which　shortens　the　doping　time,　and　MnVCsPb.Cl=Br/3　QDs　were　obtained.　By　controlling　the　reaction　time　between　strong-acid　cation-exchange　resin　and　PQDs,we　achieve　different　levels　of　manganese　doping,　resulting　in　a　new,　to　the　best　of　our　knowledge,　fluorescence　peak　at　600　nm.　The　introduction　of　strong-acid　cation-exchange　resin　preserves　the　integrity　of　thePQDstructure,　while　completing　the　doping　within　30　min.Due　to　the　low　cost　and　mild　reaction　conditions　of　resin,　it　is　expected　that　theMnVCsPb.Cl=Br/3　QDs　can　be　mass-produced　in　large　quantities.　In　addition,　in　order　to　provide　high-quality　white　light　emission,　and　prevent　anion　exchange　reactions　when　mixed　with　CsPbBr3　QDs,　the　CsPbBr3　QDs　are　coated　with　silicon.　Finally,　by　combining　ultraviolet-lightemitting　diodes　(UVLEDs)　with　the　aforementioned　PQD　mixture,　this　paper　successfully　fabricates　WLEDs　and　demonstrates　its　excellent　photoelectric　performance.　The　constructed　WLEDs　produce　warm　white　light　with　a　high　color　rendering　index　(CRI)　of　91　and　a　high　correlated　color　temperature　(CCT)　of　5966　K,　and　the　luminous　efficacy　(LE)　ofWLEDsis　41　lmW-1.　©　2024　Optica　Publishing　Group.