Lead-free　perovskites　are　becoming　a　promising　candidate　in　the　new　generation　of　fluorescence　information　recognition　owing　to　their　superior　optoelectronic　properties　and　stable　chemical　properties.　However,　the　vast　majority　of　perovskite　phosphors　present　a　luminescence　threshold　(LT)　due　to　concentration　quenching　and　exhibit　a　single　luminescent　peak　as　the　monochrome　source,　leading　to　limited　application　prospects.　Herein,　surface　coating　of　Bi3+-doped　all-inorganic　lead-free　Cs2ZrCl6　perovskite　microcrystal　is　designed　to　break　LT　and　present　dual-mode　luminescence　under　259　and　358　nm　excitation.　Dual-mode　fluorescence　peaks　are　located　at　435　and　453　nm,　contrary　to　self-trapped　exciton　(STE)　emissions　reported　previously,　which　originate　from　STE　emission　and　inter-configurational　P-3(0,1)　-＞　S-1(0)　transitions　of　Bi3+,　respectively.　Moreover,　surface　coating　of　ethyl　orthosilicate　(CHSiO)　is　introduced　to　form　a　core-shell　structure,　enhancing　the　particle　dispersion　and　the　luminescence　stability　of　Cs2ZrCl6:Bi3+　phosphors,　which　breaks　the　LT　to　increase　luminescence　intensity.　Finally,　the　Cs2ZrCl6:Bi3+-coated　CHSiO　is　mixed　with　polydimethylsiloxane　and　printed　QR　code　by　screen　printing　technology　to　achieve　dual-mode　luminescence　and　display.　These　findings　reveal　the　unique　advantages　of　surface-coated　Bi3+-doped　Cs2ZrCl6　perovskites,　thus　opening　a　new　pathway　for　multi-mode　fluorescence　recognition　and　remote　excitation　applications.