CsPbX3　(X　=　Cl,　Br　or　I)　perovskite　quantum　dots　(PQDs)　have　gained　increasing　interest　due　to　their　superior　performance　in　photoelectric　applications.　In　our　work,　a　series　of　Mn2+　doped　CsPbBr3　PQDs　were　successfully　prepared　in　glasses　by　melt　quenching　and　in　situ　crystallization　technique.　Due　to　the　4T1　(4G)→6A1　(6S)　transition　of　Mn2+,　a　slight　red　shift　from　510　nm　to　516　nm　was　found,　with　the　FWHM　expansion　from　18　nm　to　26　nm.　The　PQDs@glasses　showed　excellent　thermal　stability,　and　the　exciton　binding　energy　reached　a　high　level　of　412　meV.　The　changes　of　the　electronic　structure　after　Mn　doping　CsPbBr3　can　be　demonstrated　by　first　principles.　Finally,　a　contactless　electroluminescence　device　with　the　PQDs@glasses　was　designed　based　on　the　principle　of　electromagnetic　induction,　which　is　a　potential　application　for　detecting　distance　in　sterile　and　dust−free　environments.　©　2022　by　the　authors.