In order to find a resouces of "Rutin", the chemical component of flower of Rangium Ohwi is studied in this paper. Rutin is isolated and identified from f of rutin in flower of this family plants followcetin derived from the isolated substance. The lower of this plant confirming acetate and quering the paper of J. Naghski and W. L. Portes, and no one has reported on the presence of rutin in flower of this plant.