A sericin peptide having magnesium ions and an application thereof are disclosed, in which the sericin peptide having magnesium ions is formed by using natural silk to hydrolyze and filter the fibroin, and then adding magnesium ions to chelate with the sericin peptide. Since the sericin peptide having magnesium ions is a natural organic substance, application to human body does not cause side effect due to chemicals and can thus be used as supplements of amino acids and magnesium ions for human body to supplement magnesium ions that are necessary to human body, or can be added in cosmetic and caring products to enhance absorption of magnesium ions by skin organization.一種具有鎂離子之絲膠胜肽及其應用，其中該具有鎂離子之絲膠胜肽係利用天然蠶絲經過水解過濾絲心蛋白後，添加鎂離子與絲膠胜肽螯合而成，由於該具有鎂離子之絲膠胜肽為一天然有機物質，應用在人體上不會有化學品所帶來的副作用，進一步可做為人體胺基酸及鎂離子補充劑，以補充人體所需的鎂離子，或添加至化妝品、保養品中，提高皮膚組織對於鎂離子的吸收。
