Dragonfly was focused by many researchers to develop MAV. Because dragonfly has high flight performances those are the unintended acceleration, the rapid turn and the hovering. We concerned the flight performance influenced by umbos on wing vein of dragonfly. The length and shape of umbos were 10 to 100 μm and oblique circular cone. In this paper, artificial umbos were fabricated by application of the electrolytic polishing. The fabricated umbos were set on a metal sheet by the micro resistance welding.
