An isolated antibody that binds to human interleukin 6, comprising: (a) a heavy chain variable region (V H), which comprises a heavy chain complementary determining region 1 (HC CDR1) of SEQ ID NO: 2, a heavy chain complementary determining region 2 (HC CDR2) of SEQ ID NO: 4, and a heavy chain complementary determining region 3 (HC CDR3) of SEQ ID NO: 6; and a light chain variable region (V L), which comprises a light chain complementary determining region 1(LC CDR)1 of SEQ ID NO: 9, a light chain complementary determining region 2 (LC CDR2) of SEQ ID NO: 11, and a light chain complementary determining region 3 (LC CDR3) of SEQ ID NO: 13; (b) a heavy chain variable region (V H), which comprises a heavy chain complementary determining region 1 (HC CDR1) of SEQ ID NO: 2, a heavy chain complementary determining region 2 (HC CDR2) of SEQ ID NO: 4, and a heavy chain complementary determining region 3 (HC CDR3) of SEQ ID NO: 6; and a light chain variable region (V L), which comprises a light chain complementary determining region 1(LC CDR)1 of SEQ ID NO: 9, a light chain complementary determining region 2 (LC CDR2) of SEQ ID NO: 11, and a light chain complementary determining region 3 (LC CDR3) of SEQ ID NO: 15; or (c) a heavy chain variable region (V H), which comprises a heavy chain complementary determining region 1 (HC CDR1) of SEQ ID NO: 2, a heavy chain complementary determining region 2 (HC CDR2) of SEQ ID NO: 4, and a heavy chain complementary determining region 3 (HC CDR3) of SEQ ID NO: 16; and a light chain variable region (V L), which comprises a light chain complementary determining region 1(LC CDR)1 of SEQ ID NO: 9, a light chain complementary determining region 2 (LC CDR2) of SEQ ID NO: 11, and a light chain complementary determining region 3 (LC CDR3) of SEQ ID NO: 15. (a) a heavy chain variable region (V H), which comprises a heavy chain complementary determining region 1 (HC CDR1) of SEQ ID NO: 2, a heavy chain complementary determining region 2 (HC CDR2) of SEQ ID NO: 4, and a heavy chain complementary determining region 3 (HC CDR3) of SEQ ID NO: 6; and a light chain variable region (V L), which comprises a light chain complementary determining region 1(LC CDR)1 of SEQ ID NO: 9, a light chain complementary determining region 2 (LC CDR2) of SEQ ID NO: 11, and a light chain complementary determining region 3 (LC CDR3) of SEQ ID NO: 13; (b) a heavy chain variable region (V H), which comprises a heavy chain complementary determining region 1 (HC CDR1) of SEQ ID NO: 2, a heavy chain complementary determining region 2 (HC CDR2) of SEQ ID NO: 4, and a heavy chain complementary determining region 3 (HC CDR3) of SEQ ID NO: 6; and a light chain variable region (V L), which comprises a light chain complementary determining region 1(LC CDR)1 of SEQ ID NO: 9, a light chain complementary determining region 2 (LC CDR2) of SEQ ID NO: 11, and a light chain complementary determining region 3 (LC CDR3) of SEQ ID NO: 15; or (c) a heavy chain variable region (V H), which comprises a heavy chain complementary determining region 1 (HC CDR1) of SEQ ID NO: 2, a heavy chain complementary determining region 2 (HC CDR2) of SEQ ID NO: 4, and a heavy chain complementary determining region 3 (HC CDR3) of SEQ ID NO: 16; and a light chain variable region (V L), which comprises a light chain complementary determining region 1(LC CDR)1 of SEQ ID NO: 9, a light chain complementary determining region 2 (LC CDR2) of SEQ ID NO: 11, and a light chain complementary determining region 3 (LC CDR3) of SEQ ID NO: 15.