Abstract: Benzo1,2-b:4,3-bdithiophene bolaamphiphiles have been synthesized via Pd-catalyzed Sonogashira coupling reaction as key steps.The structures of the compounds were identified by 1H NMR,13C NMR and elemental analysis.UV spectraconfirmed the formation of -stacked aggregates in solid state with J-type parallel stacking mode.The range of energy gap calculated both from CV curve and UV spectrum implied that the compound could be used as a semiconductor material.It could also be used as a potential blue material according to its fluorescence spectrum of the compound inferred.The large Stokes shift indicated that it had great potential applications in fluorescent marking materials.In addition,Gaussian simulation calculation results showed that the compound had an ideal planar conjugated structure which could be suitable for high electron mobility devices fabrication.