Electrodeposition of Bi-Sr-Ca-Cu films from aqueous acidic and alkaline medium baths was carried out onto fluorine-doped tin-oxide (FTO) coated MgO substrates. The complex baths were formed with sodium citrate, ethylenediaminetetra-acetic acid (EDTA), tartaric acid, and sodium nitrate. The deposition potentials were found to depend on complexing agents. For the Bi-Sr-Ca-Cu system, the role of complexing agents on the cathodic polarization behaviour, cathodic current density, thickness of the film, and microstructural properties was studied. After proper oxidation, the films showed superconductivity with onset and zero-resistivity temperatures of 95 and 76 K respectively.