We succeeded in the synthesis of an anionic stannaferrocene by the reaction of a dilithiostannole with a Fe(III) reagent, which cannot be achieved by the use of cyclopentadienyl (Cp) and its related ligands. The Mossbauer spectroscopic analysis and quantum-chemical calculations indicate that the contribution of a resonance form arising from a Fe(I) and two stannole anion is the most plausible state. The cyclic voltammetry of the anionic ferrocene revealed a quasi-reversible oxidation wave at (E-pa = -1.60, E-pc = -1.40, E-1/2 = -1.50V vs Fc/Fc(+)), lower than that of the parent ferrocenide anion, owing to the introduction of the aromatic dianionic stannole ligands.