Six novel benzo［1-2，4-5］dioxazole derivatives containing stilbenyl were designed and synthesized from substituted aromatic aldehyde/ketone and 2，6-bis（4-chloromethyl phenylene）benzo［1-2，4-5］dioxazole through the Wittig-Horner reaction，and their chemical structures were determined by spectra and elemental analysis.The effects of their chemical structures on the fluorescent properties and fluorescence quantum yield were investigated，and analytical results showed that three target compounds had blue light emitting characteristics and two target compounds could give off green light.