From antibody molecular screening to pilot production of the whole chain of industrial chain, one-stop antibody R&D and customization project cooperation: human natural antibody library antibody screening, antibody affinity maturation, alpaca natural library/alpaca immune library nanoantibody screening, antibody customization (k or λ Light chain antibody library, mixed antibody library), double specific/triple specific antibody technology platform, and cooperative development of antibody targets.