Physiological and sensory characteristics of breads prepared with the flour substituted with leek powder were evaluated. Leek powder contained 34.6% total dietary fiber. Substitution of wheat flour with 2% and 3% of leek powder decreased loaf volume by 13 and 27%, respectively. Moisture content was slightly increased and staling rate during storage at 25oC decreased in breads with leek powder. The addition of leek powder slighty increased hardness of fresh bread, but did not affect hardness of stored breads. Breads with leek powder turned into greenish and had characteristic flavor. Nontheless, no significant differences were observed between control and that with 2% of leek powder in sensory evaluation.