The difference between American ginseng and Panax ginseng lies in the difference in taste, attribution, efficacy and treatment. The efficacy of American ginseng is to replenish qi and nourish yin, and to produce fluids to quench thirst, while the efficacy of Panax ginseng is to restore the normal pulse and prevent the substance from coming out, to benefit the lungs and strengthen the spleen. 1. Different flavor: American ginseng is sweet, slightly bitter and cool in nature; ginseng is sweet, slightly bitter and slightly warm in nature. 2. Differences in meridians: American ginseng belongs to heart, lung and kidney meridians; ginseng belongs to lung, heart, spleen and kidney meridians. 3. Different efficacy and main treatment: the efficacy of American ginseng is to replenish qi and nourish yin, and to promote the production of body fluid to quench thirst, which is the main treatment for deficiency of qi and yin, deficiency of heat and irritability, and internal heat and thirst (internal fever accompanied by symptoms such as eating, drinking and urinating), etc.; the efficacy of ginseng is to restore the veins and solidify the body, benefit the lungs and strengthen the spleen, and nourish the blood to promote the production of fluids, which is the main treatment for deficiencies in the body and desire to get rid of the body, deficiencies of the spleen with little food, deficiencies of the lungs with coughing and panting, and deficiencies of the qi and blood. If there is a need to use American ginseng or ginseng, it is recommended to use it under the guidance of a professional Chinese medicine practitioner and should not be used on one’s own judgment.