Multiple myeloma is a malignant tumor of the hematological system. According to the types and characteristics of elevated immunoglobulins, the disease can be divided into eight types, including IgG, IgA, IgD, IgE, IgM, light chain type, biclonal type and nonsecretory type, among which IgG type is the most common, followed by IgA type. Immunoglobulin and serum globulin levels can reflect the level of M protein and tumor load in the body, and are also important indicators for judging the efficacy before and after chemotherapy. Targeted therapy drugs commonly used in myeloma treatment include response stop, ranadolamide, Vanco, etc. Traditional chemotherapy drugs are marfalan, cyclophosphamide, adriamycin, vincristine, cisplatin, dexamethasone, etoposide, etc., which form different chemotherapy regimens for chemotherapy.