Peripheral T-cell lymphoma non-specific type is more serious, this disease is common in malignant lymphoma, the disease progresses quickly, and the mortality rate is high, the higher the pathological stage, the more serious it is. Peripheral T-cell lymphoma non-specific type belongs to a kind of non-Hodgkin’s lymphoma, which is a malignant tumor of the blood system and is more serious. Usually, lymphomas can be divided into stages I-IV, with stage IV being the most serious. Early stage of peripheral T-cell lymphoma non-specific type patients do not have obvious clinical symptoms. As the disease progresses, symptoms such as enlarged lymph nodes and fever may appear. A poor prognosis is usually indicated if the patient is older than 60 years of age, has stage III or IV, has more than one extranodal lesion, is bedridden or requires the care of others to live, and has an elevated serum lactate dehydrogenase (LDH). Once the disease is diagnosed, chemotherapy combined with radiotherapy should be actively administered. Early treatment and optimism can help improve the prognosis.