The red bead swallowtail, likes in the mountainous area and the plain area soaring, has aggregated. Larva contract 21 days, cocoon contract 12 days 。 The prosopon likes on the illumination sufficient host plant spawning, many perches in the blade babbitting or on the stem vine, old ripe larva in host plant's stem, old blade babbitting or nearby plant pupation. The prosopon flight is slow, dances in the air common in the mountainous area roadside edge of forest's flowering shrubs or visits the flower to attract the honey.