This invention provides a water-soluble dietary fiber-containing composition for bread-making which has sufficient dietary fiber and good quality, and provides a bread fortified with a water-soluble dietary fiber and a method for producing the bread fortified with a water-soluble dietary fiber. The water-soluble dietary fiber-containing composition for bread-making contains a homogeneous mixture of water-soluble dietary fiber material and an fates and oils, wherein the water-soluble dietary fiber material contains no less than 85% by mass of a dietary fiber, and the water-soluble dietary fiber-containing composition for bread-making comprises 20 to 100 parts by mass of the fats and oils relative to 100 parts by mass of the water-soluble dietary fiber material. The method of production of bread fortified with a water-soluble dietary fiber is produced by using this composition and the method for producing the bread fortified with a water-soluble dietary fiber comprising adding this composition in a kneading step in a bread-making process.本發明提供一種含有水溶性食物纖維的組成物,其可製造含有足夠量的食物纖維且具有良好品質的麵包類;以及使用該組成物的強化了水溶性食物纖維的麵包類及其製造方法。所述用於製造麵包的含有水溶性食物纖維的組成物含有水溶性食物纖維材料與油脂的均質混合物,水溶性食物纖維材料含有大於等於85質量%的食物纖維,且所述組成物相對於100質量份的水溶性食物纖維材料含有20~100質量份的油脂;所述強化了水溶性食物纖維的麵包類是使用該組成物來製造;所述強化了水溶性食物纖維的麵包類的製造方法,且在麵包製造工序的混練工序中添加該組成物。