The present invention relates to a multinuclear metallocene catalyst for olefin
polymerization and a process for olefin polymerization using the same, in which
the multinuclear metallocene catalyst for olefin polymerization comprises, as a
main catalyst, a transition metal compound that contains at least two metal atoms
in the groups III to X of the periodic table as central metals and a ligand having
a cyclopentadienyl structure bridging between the two metal atoms, and, as a cocatalyst,
an aluminoxane compound, an organoaluminum compound or a bulky compound reactive
to the transition metal compound to impart a catalytic activity to the transition
metal compound.