The product is a type of new black functional food that base on the maillard reaction and using Jerusalem artichoke as raw material. The research results fill the gap in domestic. Jerusalem artichoke is rich in Inulin, amino acid, vitamin, dietary fiber, selenium, Inulin and other nutrients. It has the function of reduction blood fat, regulation of blood sugar in both directions, improve gastrointestinal function, prevent constipation, promote mineral absorption, prevent obesity, anti-tumor and enhance immunity. The nutrition and efficacy of black Jerusalem artichoke is much more than Jerusalem artichoke. It is safe, green, low calorie and without any additive. The maillard product has strong anti-oxidation function, which can extended the shelf life of black Jerusalem artichoke. It is especially suitable for hyperglycemia people. Once introduced to the market it will be loved by consumers and face small market risk.