The present invention relates to an anticancer composition for coadministration containing an anti-c-Met antibody and an anti-her2 antibody as active ingredients, and a pharmaceutical composition for inhibiting the formation of blood vessel, and more specifically, to an anticancer composition for coadministration containing an anti-c-Met antibody and an anti-her2 antibody as active ingredients, wherein the anti-c-Met antibody and the anti-her2 antibody are an antibody or an antigen-combining fragment which is specifically combined to epitope consisting of five or more sequent amino acids in SEMA domain of a c-Met protein.본 발명은 항 c-Met 항체 및 항 her2 항체를 유효성분으로 포함하는 병용 투여용 항암 조성물, 및 혈관 형성 억제용 약학 조성물에 관한 것이다.
