High-fiber syrup is made from refined corn starch as raw material and processed by advanced production technology to replace sucrose as a food material. High-fiber syrup is rich in water-soluble dietary fiber and has low energy value. It can make up for the shortcomings of poor taste in general foods on the basis of fully retaining the original color, fragrance and shape of pastries. It can be used in products such as coarse grain bread and multi-grain biscuits. Especially suitable for obese patients, elderly and diabetic patients.