Abstract:ix compounds were firstly isolated from the leaves of Rhododendron wiltonii HemsL et Wils. and identified by chemical and spectral means. They were ursolic acid(l), (+)-catechin (2), quercetin (3), kaempferol (4), polystachoside (5) and kaempferol-3-O-arabinoside (6). The (5) and (6) were obtained for the first time from Chinese rhododendrons.