Breeding habit of Red-billed Leiothrix ( Leiothrix lutea) was preliminarily studied at Longmenhe Village of Xingshan County,Hubei from April,2005 to August,2007. L. lutea reproduce during the middle ten days of April to the last ten days of July in Longmenhe area. The birds built their nests on the Dwarf Bamboo (Indocalamus wilsoni) or short shrub shaded by arbor or shrubbery on slope or near the farmland and footpath. The building materials include withe,slender root,bine,dwarf bamboo leaves,grass leaves and stems,and lichen and so on. The process of building nest last 5 to 7 days and both male and female were involved in. Female lay an egg in early morning everyday. The mean clutch size is 3. 41 ± 0. 80 ( n = 61) . The altricial nestlings hatched after 11-13 d (n = 6) incubation. The parent fed their offspring for 9 or 10 days before they left nests when they have not full-developed yet. The breeding successful rate is about 22. 95% ( n = 61) in the study area.