A　diamine　monomer　(4,4＇-(((5,11-dihydroindolo　[3,2-b]carbazole-6,12-diyl)bis(4,1-phenylene))bis(oxy))dianiline)　containing　a　rigid　conjugated　indolocarbazole　was　designed　and　synthesized　through　a　three-step　reaction.　A　series　of　high-performance　functional　polyimides　were　prepared　through　simple　condensation　polymerization　of　the　monomer　with　different　industrial　dianhydrides　6FDA,　BTDA　and　ODPA,　respectively,　which　exhibit　superior　thermal　stability,　good　solubility　in　polar　organic　solvents　and　good　mechanical　properties.　The　glass　transition　temperature　(T-g)　is　above　334　degrees　C,　and　the　5%　weight　loss　temperature　(T-d5%)　of　polyimides　under　nitrogen　atmosphere　falls　in　the　range　of　502　similar　to　526　degrees　C.　The　tensile　strength　and　tensile　modulus　are　49.45　similar　to　60.08　MPa　and　1.4　similar　to　1.6　GPa,　respectively.　In　addition,　the　maximum　fluorescence　emission　wavelength　of　polyimides　in　the　NMP　solution　(0.02　mg/mL)　are　around　448　nm　with　blue　light　emission　and　451　nm　as　film　without　significant　red　shift,　which　indicates　the　prepared　polyimides　process　a　certain　application　potential　in　high-performance　flexible　polymer　optoelectronic　devices.