The　photoelectric　field　has　witnessed　notable　progress　with　the　emergence　of　perovskite　quantum　dots.　However,　their　practical　utility　is　constrained　by　their　susceptibility　to　degradation　and　malfunction　when　exposed　to　external　environmental　factors　like　light,　heat,　and　humidity.　To　overcome　these　limitations,　a　potential　solution　lies　in　the　growth　of　perovskite　quantum　dots　within　glasses,　leveraging　the　dense　network　structure　of　inorganic　glasses　to　achieve　a　seamless　encapsulation　of　the　quantum　dots.　This　approach　effectively　addresses　the　challenges　of　quantum　dot　stability　and　the　risk　of　lead　contamination　by　isolating　the　quantum　dots　from　the　external　environment.　This　study　utilizes　an　in　situ　nanocrystallization　approach　to　cultivate　CsPbBr3　perovskite　quantum　dots　within　a　matrix　of　glasses.　The　resulting　CsPbBr3　perovskite　quantum　dots　glasses　(CsPbBr3　PQDs@glasses)　demonstrate　a　vibrant　green　emission　due　to　exciton　recombination　radiation.　The　investigation　focused　on　the　luminescent　characteristics　of　CsPbBr3　PQDs@glasses　subjected　to　pressures　ranging　from　0　to　7　GPa,　which　resulted　in　a　significant　red　shift　in　the　spectra,　transitioning　from　519　nm　to　525　nm.　Electronic　structure,　dispersion　and　vibrational　properties　of　CsPbBr3　was　investigated　under　varying　pressure　conditions　through　the　utilization　of　first-principles　methods.　Furthermore,　an　examination　of　the　pressure　distribution　within　the　diamond　anvil　cells　was　conducted　from　a　macroscopic　perspective　employing　the　finite　element　method.　Subsequently,　contactless　underwater　electroluminescence　devices　incorporating　CsPbBr3　PQDs@glasses　were　devised,　employing　the　principle　of　electromagnetic　induction.　This　study　offers　essential　insights　into　the　physics　of　perovskite　materials　subjected　to　high　pressure,　thereby　establishing　a　groundwork　for　prospective　applications.　©　2023　The　Authors