The present invention provides an antibody targeted to interleukin 17A (IL-17A), preparation method and the use thereof. In particular, the invention provides a novel anti-IL-17A monoclonal antibody. The antibody of the present invention is capable of binding IL-17A antigen with high specificity, has high affinity and low immunogenicity, and is used for preparing a medicament for preventing or treating an IL-17A-related disease such as various inflammatory or autoimmune diseases.
