Abstract. A functionalized stable film of poly(pyrrole-sulfated -cyclodextrin) has been obtained electrochemically in LiClO4 aqueous solution using a simple 1:1 mixture of pyrrole (Py) monomer and sulfated -cyclodextrin (SCD). Different cyclic voltammetric behavior is obtained for polypyrrole (PPy) and poly(Py-SCD) during electrosynthesis. Scanning electron microscopy (SEM) and energy dispersive X-ray analysis (EDAX) measurements on the two films have confirmed the presence of CD in the films and show that CD preferentially dopes the polymer even in the presence of a large excess of perchlorate supporting electrolyte. The morphology of the new polymers shows a more organized system under SEM examination. Contrary to conventional PPy films, this new polymer offers a wide potential range for electroanalytical exploration from selective electrodes to preconcentration/sampling devices.