The invention relates to a traditional Chinese medicine for improving thyroid cancer postoperative syndrome of wind-heat invading exterior, and the traditional Chinese medicine is used for solving the problems of relieving multiple clinical symptoms of thyroid cancer post-operation, accelerating postoperative rehabilitation, improving the living quality of patients, preventing and delaying relapse or transfer of thyroid cancer, and changing the poor living quality of patients. The traditional Chinese medicine is prepared from the following components: 20-30g of honeysuckle, 20-30g of fructus forsythiae, 10-20g of scutellaria baicalensis, 20-30g of folium isatidis, 20-30g of dandelion, 20-30g of isatis root, 20-30g of solidago decurrens, 20-30g of self-heal, 10-15g of airpotato yam rhizome, 15-25g of burdock, 20-30g of houttuynia cordata, 10-20g of blackberrykiky rhizome, 10-20g of mulberry leaf, 10-20g of chrysanthemum, 20-30g of Chinese pulsatilla root, 20-30g of patrinia, 10-20g of kudzuvine root, 10-20g of notopterygium root, 10-15g of Chinese thorowax root, 20-30g of radix glehniae, 20-30g of radices trichosanthis, 15-25g of rhizoma anemarrhenae, 15-25g of fritillary, 15-25g of platycodon grandiflorum, 15-25g of fermented soybean, 15-25g of raw rehmannia, 15-25g of radix scrophulariae, 15-25g of moutan bark, and 15-25g of red peony root. The traditional Chinese medicine is safe in administration, and can be used for accelerating post-operation rehabilitation of patients, and improving the living quality of patients.