The purpose of the present invention is to provide an antibacterial peptide, wherein the antibacterial is provided with advantages including an excellent ability to inhibit microorganism growth, a low side effect to human body, and a reduced drug resistance generated by microorganism. Therefore, the disclosed antibacterial peptide can be served as an effective component of an antibacterial medical drugs combination or an active component of the antibacterial medical drugs combination. The antibacterial peptide is provided with an amino acid sequence code, which is selected from the group consisting of SEQ ID No. 1 with seventh amino acid modified by methylation and SEQ ID No. 2.本發明之主要目的在於揭露新穎抗菌胜肽,其中,該新穎抗菌胜肽係具有良好抑制微生物生長之能力、對於人體具有低副作用以及降低微生物產生抗藥性等優點,因此,本發明所揭新穎抗菌胜肽係能作為抗菌醫藥組合物之有效成份,或是作為抗菌組合物之活性成份。
