The　novel　luminescent　hybrid　bimodal　mesoporous　silicas　(LHMS)　modified　with　different　amount　of　(3-aminopropyl)　triethoxysilane　(APTES)　on　the　mesoporous　surface　and　then　loaded　with　various　capacity　of　1,8-naphthalic　anhydride　(NA)　were　synthesized　through　two-step　route.　The　relative　hybrid　materials　were　characterized　by　XRD,　N-2　adsorption-desorption　isotherms,　Si-29　NMR,　TG　and　PL,　and　the　results　show　that　the　bimodal　pore　system　is　a　suitable　host　matrix　for　the　fluorescent　materials.　After　modification　by　using　propylamine　group　as　a　linker,　the　surface　area　and　the　pore　volume　of　resultant　samples　decreased　with　the　increasing　concentration　of　APTES　in　tetrahydrofuran　solution　and　the　amount　of　the　NA,　respectively.　The　luminescent　behaviors　of　LHMS　indicated　that　the　fluorescence　intensity　and　position　of　emission　spectra　depended　on　the　various　preparation　parameters,　especially　including　the　concentration　of　APTES　in　the　tetrahydrofuran　solution　during　the　modification　process　and　mass　ratio　of　NA　with　the　modified　mesoporous　silicas.　Particularly,　their　blue-shift　effectiveness　of　the　position　of　the　emission　peak　was　remarkable　with　the　loading　NA　amount　decreased.　The　detailed　mechanism　was　also　discussed.　(C)　2011　Elsevier　B.V.　All　rights　reserved.