The　influence　of　hydrogen　bonding　on　spectroscopic　properties　is　one　of　the　fundamental　issues　in　the　field　of　luminescent　organic-inorganic　hybrid　metal　halides　(OIMHs).　We　design　and　prepare　three　OIMHs,　namely,　crystals　1,　2　and　3,　using　2,2　＇-bipyridine　and　ZnCl2　as　starting　materials.　From　crystals　1　to　3,　the　hydrogen　bonding　environment　surrounding　the　2,2　＇-bipyridinium　cations　gradually　weakens,　with　both　the　dihedral　angle　and　the　number　of　hydrogen　bonds　around　them　decreasing　progressively.　Correspondingly,　the　blue　emission　belonging　to　the　S1　-＞　S0　transition　of　the　three　crystals　gradually　increases,　with　crystal　3　exhibiting　the　strongest　blue　light　emission　and　a　photo-luminescence　quantum　yield　reaching　34.10%.　In　crystal　1,　the　dense　hydrogen　bonding　environment　of　the　2,2　＇-bipyridinium　cation　results　in　an　obvious　energy　transfer　from　S1　to　T1.　This　reduces　the　population　of　the　S1　state,　thereby　leading　to　weaker　blue　light　emission.　In　crystals　2　and　3,　the　weaker　hydrogen　bonding　environment　and　smaller　spatial　distortion　of　organic　cations　weaken　or　even　prevent　energy　transfer　between　S1　and　T1,　thereby　enhancing　blue　light　emission.　These　findings　provide　new　insights　for　exploring　novel　luminescent　OIMHs　and　developing　more　effective　means　of　regulating　their　luminescence　performance.　(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)-(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)　(sic)(OIMHs)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic).　(sic)(sic)(sic)2,2　＇-(sic)(sic)(sic)(sic)ZnCl2(sic)(sic)(sic),　(sic)　(sic)(sic)(sic)(sic)(sic)(sic)(sic)OIMH,　(sic)(sic)(sic)1,2(sic)3.　(sic)(sic)(sic)1(sic)(sic)(sic)3,　2,2　＇-(sic)(sic)(sic)　(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic),　(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)　(sic).　(sic)(sic)(sic),　(sic)(sic)(sic)(sic)(sic)S1　-＞　S0(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic),　(sic)(sic)(sic)(sic)3　(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic),　(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)34.10%.　(sic)(sic)(sic)1(sic),　2,2　＇-(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)S1(sic)T1(sic)(sic)(sic)(sic)(sic)(sic)(sic).　(sic)(sic)　(sic)(sic)S1(sic)(sic)(sic)(sic)(sic),　(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic).　(sic)(sic)(sic)(sic)2(sic)3(sic),　(sic)(sic)(sic)　(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)S1(sic)T1(sic)(sic)(sic)　(sic)(sic)(sic)(sic),　(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic).　(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)OIMHs(sic)　(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic)(sic).