The difference between Atractylodes macrocephala and Atractylodes macrocephala is in terms of drug source, flavor and attribution, efficacy and medication precautions. 1. Different drug sources: Atractylodes macrocephala is the dried rhizome of Atractylodes macrocephala or Atractylodes macrocephala; Atractylodes macrocephala is the dried rhizome of Atractylodes macrocephala, family Asteraceae. 2. Different tastes and meridians: Atractylodes macrocephala is pungent, bitter, warm, and belongs to the spleen, stomach and liver meridians; Atractylodes macrocephala is bitter, sweet, warm, and belongs to the spleen and stomach meridians. 3. Different efficacy: Atractylodes macrocephala has the efficacy of drying dampness, strengthening the spleen, dispelling wind and dispersing cold (dispelling wind and dispersing cold), and is used in treating dampness obstruction of the middle jiao (dampness obstructing the function of the spleen and stomach), distension and fullness of the epigastric region, diarrhea, rheumatism paralysis, wind-cold colds and night blindness, etc. It has the effect of tonifying qi and strengthening the spleen, and is warm in nature. Atractylodes macrocephala has the effects of tonifying qi and strengthening the spleen, drying dampness and inducing diuresis (drying dampness and reducing water-dampness in the body), stopping sweating and calming the fetus, and is used for spleen deficiency with low food intake, abdominal distension and diarrhea, oedema, diarrhea, spontaneous sweating due to deficiency of qi (sweating involuntarily during the daytime, aggravated by sweating with the slightest movement), and restlessness of the fetus. 4. Different medication precautions: Yin deficiency, internal heat, qi deficiency, excessive sweating should not be used atractylodes macrocephala; external wind-heat or warm heat, solid heat within the full bloom of yin deficiency and fire (deficiency of yin and essence in the body, the emergence of deficiency and hyperactivity of fire), blood deficiency, blood heat, etc. should not be a single medicine large quantities of atractylodes macrocephala. Atractylodes macrocephala and Atractylodes macrocephala should be used under the guidance of a professional Chinese medicine practitioner, and should not be used blindly on their own to avoid adverse reactions.