Poly-vinylpyrrolidone-anchored (PVP) supported platinum catalyst (PVP-Pt) and rare earth metals (Sm3+, Pr3+, Ce3+, Nd3+ and La3+) promoted PVP-Pt catalysts were prepared and used in the hydrogenation of o- and in-chloronitrobenzene (CNB) in ethanol at 303 K and atmospheric pressure. It was found that rare earth metals improved the selectivity of chloronitrobenzene to chloroaniline (CAN), while the hydrogenation rate of CNB decreased. In the presence of NaOH, PVP-Pr-Pt and PVP-La-Pt catalysts exhibit the highest selectivity in the hydrogenation of CNB. At the same time different support materials of Pt catalyst (such as polyethylene glycol (PEG), ethyl cellulose (EC)) possessed great influence on catalytic activity and selectivity of p-CAN.