Most patients with stage III T-cell lymphoma can live 3 to 5 years. Stage III of T-cell lymphoma means that the tumor cells have invaded the area of lymph nodes above and below the diaphragm, or invaded the lymph nodes above the diaphragm and splenic involvement, and the organism has developed impaired function and irritated abdominal organs. T-cell lymphoma stage III belongs to the advanced stage, and means must be taken for treatment, which can inhibit the spread and growth of the tumor, but the possibility of cure is small, and the survival period of most of the patients is 3~5 years. Patients need to undergo relevant examinations to clarify the extent of distant spread and metastasis of cancer cells as well as the extent of the disease, and undergo radiotherapy or chemotherapy to inhibit the spread and metastasis of cancer cells in the body, and commonly used medicines include cyclophosphamide, doxorubicin, vincristine and so on. It is suggested that patients should take active treatment, cooperate with doctors, keep positive and optimistic mood, adjust their mindset, strengthen nutrition, eat more fresh vegetables and fruits, and eat more protein-rich food.