The invention discloses a marinating duck and a making method thereof. The marinating duck is prepared from fresh duck, peltate yam rahizome slices, sweet soybean paste, red garlic, celery, capsicum annuumvar.fasciculatum, vegetable oil, red wine, bone soup, fat incense soy sauce, a proper amount of refined salt, rock candy, monosodium glutamate, a proper amount of water and condiment. The making method comprises the following steps that 1, duck is prepared for standby application; 2, a condiment packet are prepared for standby application; 3, soup base is prepared for standby application; 4, the ready duck and condiment packet are placed into the soup base, and boiled with high heat, and then slowly cooked with low heat, thus the marinating duck is obtained. The marinating duck has the advantages that the fragrance thereof strikes the nose, the taste is fragrant taste, the flavor is unique, and a variety of nourishing raw materials at a reasonable ratio are added, nutritional value is rich, and the marinating duck has a certain food therapy and health care effect; the making method has the advantages of being simple in process, easy to master, improving the production efficiency and being suitable for popularization and application.