The cost of radiotherapy for rectal cancer is around $50,000, which varies with different ranges of radiotherapy and treatment purposes. Radiotherapy is an important means to treat rectal cancer, and the treatment purposes mainly include neoadjuvant radiotherapy, adjuvant radiotherapy and palliative radiotherapy. Neoadjuvant radiotherapy refers to radiotherapy before surgery, in order to reduce the lesion and improve the surgical resection rate, the radiotherapy scope is not much different from adjuvant radiotherapy; adjuvant radiotherapy is postoperative radiotherapy to reduce the probability of postoperative recurrence and metastasis, with the cost of about 50,000 yuan, individualized treatment, and there are some differences for each person. Palliative radiotherapy refers to patients who cannot be cured radically, by conducting radiotherapy, to control the condition, due to the small scope, the number of radiotherapy is small, the cost is often lower than the cost of neoadjuvant and adjuvant treatment.