The invention discloses a coat rack hanging arm with a belt buckle. The coat rack hanging arm comprises a hanging arm main body and a belt buckle component, wherein the belt buckle component comprises a frame body and a shaft sleeve; the frame body is connected to the shaft sleeve by virtue of a connecting rod; a connecting shaft, which is matched with the shaft sleeve, is arranged on the lower side of the hanging arm main body; and two press rollers, which are matched, are arranged inside the frame body. The coat rack hanging arm with the belt buckle disclosed by the invention, by virtue of the press rollers which are matched and keep a certain gap, can conveniently lead such strip-shaped articles as a waistband, a necktie, a scarf and the like penetrate from the middle of the two press roller and can clamp the strip-shaped articles to prevent the articles from sliding by virtue of the two press rollers.