  We discuss the exact plaquette-ordered ground states of the generalized
Hubbard model on the Kagom\'e lattice for several fillings, by constructing the
Hamiltonian as a sum of products of projection operators for up and down spin
sectors. The obtained exact ground states are interpreted as N\'eel ordered
states on the bond-located electrons. We determine several parameter regions of
the exact ground states, and calculate the entanglement entropy. We examine the
above results by numerical calculations based on exact diagonalization and
density-matrix renormalization group methods.
