The present invention discloses non-fried flavored functional food and a preparation method thereof. The functional food comprises the following raw materials: puffed millet flour, flour, red date powder, sweet potato paste, Chinese yam paste, potato paste, trehalose, stevioside and edible salt. The preparation method comprises steps of millet flour puffing, red date powder preparing, sweet potatopaste preparing, Chinese yam paste preparing, potato paste preparing, then dough kneading, dough rolling, slice cutting and baking. The preparation technology is convenient and rapid. The prepared functional food is unique in flavor, good in taste and rich in nutrients, and also has functions of lowering blood pressure and cholesterol, preventing oxidation, enhancing resistance, and regulating blood sugar, etc.