The electrical conducting composites were prepared by an emulsion polymerization using aniline as a monomer, and poly(styrene-ethylene-butylene-styrene) (SEBS) or sulfonated-poly(styrene-ethylene-butylene-styrene) (SSEBS) as a matrix, dodecylbenzenesulfonic acid (DBSA) as both protonating agent and a surfactant and ammonium peroxydisulfate (APS) aqueous solution as an initiator in chloroform. In this reaction, the chloroform solution is formed as a continuous phase, while the aqueous solution act as a dispersed phase in the emulsion. The electrical conductivity of PANI-DBSA/SSEBS composites were increased about 1 order with the amount of PANI compared to PANI-DBSA/SEBS composites. The introduction of sulfonic group to SEBS results in the coulombic interaction between each phase of composites. As a results, the effect of miscibility was enhanced between each phase. The electrical conductivity was increased up to 2.56 ×10(-1) S/cm with amount of 25 wt% PANI.