The invention belongs to the technical field of foods and processing technology of the foods, and particularly relates to a crispy cereal biscuit and a making technology of the crispy cereal biscuit. The crispy cereal biscuit and the making technology mainly solve the technical problems that an existing biscuit is rough in taste, dim in color and luster and complex in making method. By the adoption of the technical scheme, the crispy cereal biscuit comprises following raw materials, by weight, 443-489 parts of wheat flour, 104-116 parts of vegetable oil, 80-88 parts of white granulated sugar, 88-98 parts of potato starch, 7.6-8.4 parts of edible salt, 45-49 parts of corn flour, 14-16 parts of glucose syrup, 10-12 parts of ammonium bicarbonate, 3.8-4.2 parts of sodium bicarbonate, 1.9-2.1 parts of calcium hydrophosphate, 0.9-1.1 parts of disodium dihydrogen pyrophosphate, 0.9-1.1 parts of granulesten, 0.1-0.3 part of sodium pyrosulfite, 0.1-0.3 part of protease, 0.9-1.1 parts of sodium glutamate, 0.9-1.1 parts of potato essence, 4.5-5.5 parts of beef extracts, 29-33 parts of coarse sugar and 165-183 parts of water. The crispy cereal biscuit is made through weighing, mixing, shaping, baking and the like. The crispy cereal biscuit is crispy in taste, delicious and bright in color and luster, and the making method is simple.