A cool hot pot soup for reducing internal heat is prepared from the following raw materials: old duck soup, tomato, lotus root, corn, bitter gourd, glutinous rice, yam, auricularia, chrysanthemum, Dendrobium, Radix Isatidis, mustard, lily, stigma Maydis, radish, Rhizoma Coptidis, Rhizoma Anemarrhenae, ginger slices, millet spicy, cooking wine, fragrant leaves, soy sauce, spiced seasoning, onion and vinegar. According to the invention, Chinese herbal medicines such as chrysanthemum, Dendrobium, Radix Isatidis, mustard, stigma Maydis, Rhizoma Coptidis, Rhizoma Anemarrhenae and the like are added into the old duck soup, and the raw materials with the same homology of medicine and food are reasonably matched, so that not only the medicinal value of enhancing immunity, stimulating appetite and strengthening spleen, beautifying and preserving health is achieved, but also the taste is fragrant and the fire-reducing effect is good.