Patterning　is　crucial　for　advancing　perovskite　materials　into　color　conversion　micro-display　applications,　but　achieving　inkjet-printed　patterns　with　high　performance　and　precision　remains　challenging.　Here,　novel　CsPbBr3/PDMS　nanoparticles　as　a　promising　candidate　is　proposed　for　achieving　precise　and　perfect　inkjet　printing　patterns.　The　as-prepared　nanoparticles　ensure　exceeding　brightness,　exceptional　stability,　uniform　fluorescence　emission,　and　high　resolution　reaching　the　highest　performance　of　drop-on-demand　inkjet　printing.　Specifically,　the　performance　and　stability　of　CsPbBr3/PDMS　nanoparticles　are　enhanced　through　a　two-step　optimization　involving　dodecyl　benzene　sulfonic　acid　(DBSA)　ligand　modification　and　polydimethylsiloxane　(PDMS)　in　situ　coating,　resulting　in　the　highest　photoluminescence　quantum　yield　(PLQY)　of　92%　among　CsPbBr3/polymer　core-shell　composites　so　far.　The　branched　structure　of　DBSA　and　the　PDMS　shell　provide　steric　hindrance　and　effectively　prevent　agglomeration　during　storage　or　patterning.　The　viscous　PDMS　coating　inhibits　the　coffee　ring　effect,　not　only　leading　to　excellent　near-unity　uniform　emission　but　also　promoting　the　formation　of　smaller　and　more　elaborate　droplets,　increasing　the　printing　resolution　by　up　to　surprisingly　300%.　Importantly,　the　impeccably　displayed,　high-resolution　patterns　formed　by　versatile　CsPbBr3/PDMS　nanoparticles　have　demonstrated　significant　potential　for　high　pixel　density　Micro-LED　displays,　enabling　efficient　and　stable　color　conversion.　©　2024　Wiley-VCH　GmbH.