Epidermal growth factor receptor antibody and application thereof

The invention provides an epidermal growth factor receptor antibody and application thereof. The heavy chain amino acid sequence of the epidermal growth factor receptor antibody is shown as SEQ ID NO:1, and the light chain amino acid sequence is shown as SEQ ID NO:2. By adopting the epidermal growth factor receptor antibody, on the basis of keeping high target affinity and low immunogenicity of ahumanized antibody, the affinity of relevant receptors (Fc RIII and FcRn) are improved, the function of an activation cancer inhibition immune cell is improved remarkably, and the in-vitro/in-vivo anti-tumor effect is enhanced. As proved by experiments, the in-vitro cancer cell killing activity is improved by 4 times, the in-vivo anti-cancer efficacy is improved by 60 percent, and the bioavailability is improved. The anti-cancer efficacy of the epidermal growth factor receptor antibody is expected to exceed those of first and second generations of antibodies (including a large number of biosimilar antibodies under stu