Iron(Ⅱ) tetrasulfophthalocyanine (FeTSPc), as a novel mimetic enzyme of peroxidase, was used in the synthesis of a conducting polyaniline (PANI)/sodium dodecylsulfate (SDS) complex in SDS aqueous micellar solutions. The effects of pH, concentrations of aniline, SDS and H_2O_2, and reaction time on polymerization of aniline were studied in this case as shown by UV-Vis absorption spectroscopy. The results show that a wide range of pH (0.5-4.0) is required to produce the conducting PANI, and the optimal pH is 1.0 in SDS micelle. The optimal concentrations of aniline, SDS and H_2O_2 in feed, and reaction time in this case for the production of conducting PANI are respectively 10 mmol/L, 10 mmol/L, 25 mmol/L, and 15 h. FT-IR spectrum, elemental analysis, conductivity, cyclic voltammetry and thermogravimetric analysis confirm the thermal stability and electroactive form of PANI.