There is no fastest leukocyte-boosting food, because food has no obvious leukocyte-boosting effect, and etiologic treatment is needed. 1. Food therapy: food in the lean meat, eggs, fish, shrimp and other protein-rich food, can strengthen the nutrition, to a certain extent, to promote the bone marrow to generate more white blood cells. However, these foods have limited effect on raising white blood cells, and even have no obvious effect on raising white blood cells in some patients with leukopenia. 2. Etiological treatment: the causes of leukopenia include hepatitis virus infection, splenomegaly, rheumatic immune diseases (rheumatoid arthritis, systemic lupus erythematosus, etc.), leukemia, lymphoma, multiple myeloma, etc. In addition, antibiotics such as amoxicillin and other antibiotics can be used to treat leukopenia. In addition, antibiotics such as amoxicillin, antifungal drugs such as voriconazole, and chemotherapeutic drugs such as cytarabine may cause a decrease in white blood cell count. Therefore, the etiologic treatment can raise the white blood cells, such as rheumatoid arthritis to be oral prednisone, splenomegaly patients can be splenectomy and so on. Therefore, patients with leukopenia need to go to the hematology department in a timely manner to complete the relevant examinations to determine the cause of leukopenia, and then receive treatment under the guidance of a physician for the cause of leukopenia.