The organo-inorganic hybrid material, consisting of Poly (3,4-Ethylene Dioxythiophene) (PEDOT) doped with phosphomolybdate cluster anions [PMo_(12)O_(40)]^(3-), has been synthesized by direct in situ oxidative polymerization of 3,4-Ethylene Dioxythiophene (EDOT) with phosphomolybdic acid (H_3PMo_(12)O_(40)). Its characterization is investigated by Fourier Transform Infrared Spectroscopy (FT-IR) and Scanning Electron Microscopy (SEM). The hybrid material presents predominantly high electronic conductivities of around 2.0 and 7.0 S cm^(-1) at 300 and 400K respectively.