The present invention discloses a camellia nitidissima sugar lowering low-fat nutritious biscuit which belongs to the health-care food industry. The biscuit consists of the following raw materials in percentage by weight: camellia nitidissima 15-20%, pea flour 15-20%, sweet potato flour 12- 18%, corn flour 10-15%, red bean powder 5-10%, egg white 8-15%, corn germ oil 5-10%, oligomeric maltose 5-10%, baking powder 1-2%, baking soda 1-2%, edible salt 0.05-0.15%, citric acid 0.01-0.1%, and the balance water. The biscuit is prepared from the above materials according to the ratio, and specifically is prepared by extracting raw liquid, screening and selecting flour, stirring and mixing into a dough, rolling and shaping, baking, screening, and finally packaging. The camellia nitidissima sugar lowering low-fat nutritious biscuit is finely prepared by scientifically matching various types of coarse cereals and added raw materials with high nutritional value, maximumly maintains the essence ingredients and natural flavor of the coarse cereals, does not add any flavoring agent, maintains the natural grain flavor, has characteristics of excellent mouthfeel and rich nutrition, and is suitable for people who avoid sugar.