The utility model relates to a medical plaster for a Guanyuan acupoint for reducing abdomen weight, belonging to the field of the Chinese patent medicine plaster. The utility model is characterized in that the center of a piece of square compress is provided with a pie-shaped and plaster-shaped medicine which is made by mixing multiple Chinese herbal medicines, such as musk, dragon blood, frankincense, myrrh, etc., the surface of the pie-shaped and plaster-shaped medicine is coated with an azone thin film, the compress and the medicines, and the surface of the azone thin film is coated with a plastic thin film layer. The utility model has the advantages of convenient carrying and good medicine ventilation property and stability, overcomes the problems existed in the existing external-application Chinese-medicine plaster, and because of good ventilation property, is not easy to bring pains when a human body skin causes the skin disease or changes the medicine.