The　surfaces　of　density　nano-silica　spheres　(DNSS)　was　modified　using　amine　groups,　and　then　novel　luminescent　DNSS-based　materials　were　successfully　synthesized　via　post-grafting　various　capacities　of　perylene-3.4.9.10-tetracarboxylic-dianhydride　(PTD)　and　4-amino-1,8-naphthalic　anhydride　(ANA).　Meanwhile,　their　structures　and　properties　were　characterized　by　XRD,　SAXS,　TEM,　N-2　sorption,　FT-IR,　TG-DTG,　Photoluminescence　and　elemental　analysis,　as　well　as　time-resolved　decays.　The　results　demonstrate　that　the　ANA　or　PTD　is　uniformly　distributed　in　the　presence　of　outer　surface　of　amine-modified　DNSS.　Two　characteristic　peaks　centered　at　525　nm　and　560　nm　with　various　amounts　of　surface-grafted　PTD　belong　to　aggregate　states,　comparably,　the　emission　peak　for　ANA-DNSS　samples　presents　the　blue-shift　from　520　nm　to　504　nm　with　increasing　amount　of　surface-grafted　ANA,　indicating　the　dispersion　behaviors　of　ANA　from　aggregating　to　monolayer　state.　Meanwhile,　the　fluorescence　decay　lifetime　is　around　4.49ns　for　ANA-DNSS-10,　9.85ns　for　PTD-DNSS-10,　longer　than　3.99ns　for　NA-DNSS-10　in　our　previous　report.　Specially,　the　SAXS　patterns　show　the　increase　tendencies　for　surface　fractal　value　with　increasing　amount　PTD　or　ANA,　suggesting　the　structural　irregularities　of　obtained　hybrid　materials　for　before　and　after　surface　grafting.　These　observations　demonstrate　that　the　surface　effect　in　the　APTES-DNSS　matrix　play　an　important　role　on　the　fluorescent　behaviors.