The differences and efficacy of chemotherapy and radiotherapy are analyzed as follows: Firstly, radiotherapy is also called radiotherapy, which is mainly used to inhibit and kill tumor cells by accelerating the head to send out rays to reach local lesions. It is a local treatment mode, which is mainly used for the treatment of tumors with relatively limited lesions. For example, squamous cell carcinoma of the cervix is more sensitive to radiotherapy and has better treatment effect, but radiotherapy also has its adverse effects, mostly seen in local skin damage. Secondly, chemotherapy, also known as chemotherapy, is mainly administered through intravenous or oral chemotherapy drugs to inhibit or kill tumor cells. It is a kind of systemic treatment, mainly for tumor diseases that are sensitive to chemotherapy drugs, but the adverse reactions of chemotherapy are mainly bone marrow suppression and gastrointestinal reactions. The two can be applied either alone or in combination, and their purpose is to improve the quality of survival and survival rate of patients.