Carbon nanotubes(CNTs)/styrene butadiene styrene(SBS)/polyaniline(PANI) composite electrode materials were synthesized by in-situ polymerization in solution with ammonium persulfate as initiator and phytic acid as doping acid. The structure and morphology of the electrode materials were characterized by IR and SEM. The electrochemical properties of the materials were characterized by CV, EIS and GCD. The results show that CNTs/SBS/PANI composite electrode materials have higher specific capacitance, cycle stability and rate performance than SBS/PANI composites. The maximum specific capacitance of CNTs/SBS/PANI composite electrode material is 356.7 F/g when the content of CNTs in aniline monomer is 3% and the scanning rate is 5 mV/s.