Fructus Aurantii Immaturus is warm and bitter in taste, belonging to the spleen and stomach meridian, and has the functions of breaking qi, promoting digestion, resolving phlegm and reducing swelling. Atractylodes macrocephala is warm, bitter and sweet, and has the functions of invigorating qi and spleen, eliminating dampness and promoting diuresis. The combination of the two drugs has a certain weight loss effect, but weight loss can not rely on drugs, but should be combined with diet adjustment and strengthening exercise.