  We study the enantio-specific state transfer in a four-level model for
symmetric-top chiral molecules. Such a model is formed by coupling the
electric-dipole transitions among four appropriate working states with three
electromagnetic fields. It includes two cyclic three-level substructures, where
the overall phases differ by $\pi$ with enantiomers and reflect the chirality
dependence of the molecule. Based on this four-level model, two dynamic ways
are proposed to achieve the approximately perfect enantio-specific state
transfer for symmetric-top chiral molecules.
