For patients with leukopenia, mild can take Ricodin for symptomatic treatment, for severe leukopenia patients, can use recombinant human granulocyte stimulating factor for symptomatic treatment. But for the treatment of leukopenia, the treatment should be based on the cause of the disease, the patient’s cause of the disease has been eradicated, leukopenia can be relieved on their own, so to find the cause of the disease is fundamental. Often the cause of leukopenia is caused by patients taking certain drugs, such as isoniazid, rifampicin, some penicillin, cephalosporins can lead to, in this case, after stopping the above drugs, the white blood cells can return to normal. In addition, if the patient is suffering from serious infectious diseases, especially gram-negative bacillus infections, there can also be a decrease in white blood cells, in this case, we need to carry out effective anti-infective treatment, after the recovery of the patient’s condition, the white blood cells can be improved, rather than just carry out symptomatic treatment of white blood cells. If the patient is long-term exposure to certain rays, such as X-rays and γ-rays, etc., can also lead to a decline in white blood cells, in this case, the patient needs to stay away from these radioactive substances, in order to make the gradual recovery of white blood cells, and at the same time, supplemented by the enhancement of white blood cells in order to achieve the effective purpose of drug therapy.