  We studied the dilaton cosmology based on Weyl-Scaled induced gravity. The
potential of dilaton field is taken as exponential form. An analytical solution
of Einstein equation is found. The dilaton can be a candidate for dark energy
that can explain the accelerated universe. The structure formation is also
considered. We find the the evolutive equation of density perturbation, and its
growth is quicker than the one in standard model which is consistent with the
constraint from CMBR measurements
