The present invention provides an anti-human transferrin receptor antibody and an analog thereof, wherein, in the heavy-chain variable region of the antibody, (a) CDR1 comprises the amino acid sequence represented by SEQ ID NO: 62 or SEQ ID NO: 63; (b) CDR2 comprises the amino acid sequence represented by SEQ ID NO: 13 or SEQ ID NO: 14; and (c) CDR3 comprises the amino acid sequence represented by SEQ ID NO: 15 or SEQ ID NO: 16.