The exact survival time of chronic lymphocytic leukemia cannot be generalized, ranging from several months to several decades. 1. The prognosis of different patients with chronic lymphocytic leukemia is different, such as patients with obvious symptoms, slow progression of the disease, more sensitive to treatment and no other underlying diseases, their survival time is longer. 2. Some patients have more serious conditions and the disease develops more rapidly, and their survival time is shorter, which can be only a few months. Chronic lymphatic leukemia mainly occurs in middle-aged and old-aged people, and is characterized by the aggregation of lymphocytes in spleen, lymph nodes, bone marrow and peripheral blood; there is not much chance of complete cure for this disease, and after the diagnosis is clearly made, the patients need to cooperate with the doctor actively in the treatment, so as to slow down the development of the disease and prolong the survival period. Therapeutic drugs include ibrutinib and nitrogen mustard phenylbutyrate. Chronic lymphocytic leukemia patients usually need to pay attention to the cold and warmth and clean diet, to avoid infection caused by the aggravation of the disease, this disease is highly specialized, should be timely to the regular hospital, under the guidance of the doctor to determine the specific treatment plan, and actively cooperate with the treatment, to avoid the deterioration of the condition.