Oral squamous cell carcinoma is a malignant tumor with strong infiltration and fast growth. Radiation therapy can play a better role in controlling the primary lesion, but whether surgery is needed should be determined by whether there is lymph node metastasis and the size of the tumor. If there is no lymph node metastasis for the time being and the primary tumor is still small, radiation therapy can be given first for observation, but for larger tumors, chemotherapy or radiotherapy is usually given first, and surgical resection is still needed in the later stage. In addition, if the tumor has cervical lymphatic metastasis, surgical treatment should be the main treatment. At present, most of the tumor treatments are integrated treatments, and chemotherapy, surgery and radiotherapy are integrated, which can complement each other and get the best effect. The specific effect of radiotherapy without surgery for squamous oral cancer can only be determined after checking the invasive range and size of the cancer. It is recommended to consult doctors in specialized hospitals.