[Problem] An object of the present invention is to provide an anti-human IL-23R antibody having excellent activity and/or cross-reactivity compared to conventional IL-23R antibodies, and means for using the antibody to prevent or treat various diseases such as ophthalmic disease, inflammatory bowel disease, or psoriasis in which human IL-23R is involved in pathogenesis. [Means for Solution] An anti-human IL-23R antibody comprising a heavy-chain variable region consisting of the amino acid sequence shown by SEQ ID NO: 10 or 14 and a light-chain variable region consisting of the amino acid sequence shown by SEQ ID NO:6 or 18.