  $^{6}$He+$t$ cluster states of exited $^{9}$Li have been measured by 32.7
MeV/nucleon $^{9}$Li beams bombarding on $^{208}$Pb target. Two resonant states
are clearly observed with the excitation energies at 9.8 MeV and 12.6 MeV and
spin-parity of 3/2$^{-}$ and 7/2$^{-}$ respectively. These two states are
considered to be members of K$^{\pi}$=1/2$^{-}$ band. The spin-parity of them
are identified by the method of angular correlation analysis and verified by
the continuum discretized coupled channels (CDCC) calculation, which agrees
with the prediction of the generator coordinate method (GCM). A monopole matrix
element about 4 fm$^{2}$ for the 3/2$^{-}$ state is extracted from the
distorted wave Born approximation (DWBA) calculation. These results strongly
support the feature of clustering structure of two neutron-rich clusters in the
neutron-rich nucleus $^{9}$Li for the first time.
