We first show that homogeneous submanifolds with abelian normal
bundle in a symmetric space of non-compact type occur as principal
orbits of complex hyperpolar actions on the symmetric space.
Next we show that all complex hyperpolar actions with a reflective
orbit are orbit equivalent to Hermann type actions. Furthermore,
we classify complex hyperpolar actions with a totally geodesic
orbit in the case where the ambient symmetric space is irreducible.
Also, we list up the cohomogeneities of Hermann type actions
on irreducible symmetric spaces.