Immunosorbent therapy is a blood purification therapy that removes disease-causing substances through blood purification by binding them to carriers with the specific affinity of antigen-antibodies for certain substances. Currently, there are five types of immunosorbent types: antigen-antibody binding, complement binding, FC binding, hydrophobic binding, and electrostatic binding. The commonly used binding carriers mainly include agar and medicinal activated carbon, which are highly selective and specific, and can remove immune complexes, autoantibodies, inflammatory mediators, etc., and are commonly used to alleviate immune diseases. Through its own blood purification, it can avoid transfusion reactions caused by blood transfusion, such as fever, allergy, etc. It is highly selective to the disease-causing factors in the blood, and has the advantage of higher therapeutic efficiency.