With triphenylamine and fluorenone as raw materials, three novel triphenylamine derivatives: (4-fluorenylidene hydrazo methylenephenyl)diphenylamine, bis-(4-fluorenylidene hydrazo methylenephenyl)phenylamine and tris-(4-fluorenylidene hydrazo methylenephenyl)amine（a~c） were synthesized via Nucleophilic Addition. The structures of the three target compounds were characterized by means of FTIR, 1HNMR and elemental analysis. Their UV-Vis spectra, fluorescence spectra, electrochemical behavior and thermal stability were studied respectively. The results show that the thin films of three compounds（a~c） emit red fluorescence. They all obviously have the performance of Aggregation-Induced Emission (AIE). Their ionization potential energy levels (5.62~ 5.65 eV) are matched with work function (4.8 eV) of positive electrode（ITO）, so the barrier of hole transporting can be effectively reduced and in favor of hole-transport. The results of TG curves show that their thermal decomposition temperatures (Td) are 317，292 and 303 ℃ and they all have good thermal stability.