The raw materials of the immunochromatography quality control system produced by Kangcui Biological can be used for colloidal gold/fluorescent immunochromatography/immunohistochemistry and other technical platforms. A variety of quality control systems can fully meet the different requirements of different projects for detection concentration and sensitivity. This product uses sheep immune serum (anti-serum) with highly valent antibody as raw material, and adopts affinity purification /PG-R purification to make sheep anti-igg polyclonal antibody with high purity and high activity.