Acute leukemia is the most common malignant disease of the hematological system, and there are two clinical types of acute lymphoblastic leukemia and acute myeloid leukemia. There is no sternal pressure pain, and there is no enlargement of liver and spleen lymph nodes. Second, the routine blood test is completely normal, and the patient’s blood count is not abnormally high, the hemoglobin is normal, and the number of platelets is also normal. Third, the patient’s bone marrow examination is completely normal, and the proportion of primitive cells plus promyelocytes in the bone marrow is less than 5%, and there are no infiltrative lesions outside the bone marrow, then the criteria for complete remission can be met.