Novel polypeptides which have an excellent angiogenesis-inducing activity and an excellent antibacterial activity and medical uses thereof are disclosed. The amino acid sequences of the novel polypeptides are shown in any one of SEQ ID NOs:1 to 6. These polypeptides have angiogenesis-inducing and antibacterial activities. Such polypeptides are useful for the prevention, amelioration or treatment of skin wounds caused by a cut wound, surgical wound, erosion, burn, decubitus,intractable wound, skin ulcer, leg ulcer, diabetic ulcer, occlusive arterial disease or arteriosclerosis obliteran, and for the prevention, amelioration or treatment of bacterial infection in such skin wounds, and the like.