Abstract: The possible structures of the bis-linked fullerene oxide molecule C₁₂₀O₂have been re-cently investigated carefuly with INDO series methods.The tw o oxygen atoms form a bridge type bond and are connected to The edges of 6/5 rings or 6/6 rings of the fullerene cages, which are linked by adjacent furanoid five-membered rings.The calculation results show that Both con-fig urations are of the C-v symmet ry and the latter seems to be more st able.What is more, The latter electronic spect ra are in bet ter agreement with The experimental dat a in comparison with The former.Formation of the bis-linked ful erene oxide C₁₂₀O₂notonly lessened the ang le strength of the C₆₀O epoxide, but also enhanced The interaction of The two fullerene cages linked by two fura-noid five-membered rings.Although The two fullerene cages show a certain independency, The multiple direct connection draw them nearer and cause a st ronger interaction.At last, C₁₂₀O₂can be decomposed to form new compounds.

Key words: C₁₂₀O₂, Bis₂linked fullerene oxide, Electronic spectra