Cyclopeptides have lots of physiological functions and curatorial worthiness,and more steadily than linear peptides.They show great potential at forming hormone、antibiotic、ion-carrier system、antifungal antibiotic、antitumor and toxin.More and more cyclopeptides were separated and identificated with development of biotechnology and chemistry.In this mini-review,some natural cyclopeptides will be introduced,including separationn and analysis,biosynthesis and synthesis.