The synthesis of a tropone-containing PPV-based conjugated oligomer by the Wittig polycondensation was investigated, where the tropone unit was introduced as the conjugated segment. Although the NMR and IR studies revealed the low molecular weight of the resulting product, no side reaction toward the carbonyl group in the tropone ring occurred to maintain the tropone structure as evidenced by the MALDI(Matrix-Assisted Laser Desorption Ionization)-TOFMS spectrum. The UV-vis and PL spectra gave preliminary information on the optical property of the tropone-containing conjugated oligomer.