Five　kinds　of　heterofluorenes　(silafluorene,　oxygafluorene,　sulfafluorene,　phosphafluorene,　carbazole)　and　2,5-dihexylbenzene　alternative　conjugated　copolymers　have　been　developed　via　Suzuki　coupling　reaction.　The　successful　preparation　of　the　conjugated　copolymers　opens　a　door　for　a　new　kind　of　host　materials　with　high　triplet　state　energy　as　excellent　host　materials　and　special　optical　properties　with　tremendous　potential　in　the　field　of　organic　electronics　without　the　typical　defects　of　polyfluorene.