The invention discloses a preparation method for nutrient health-care shredded bread. The preparation method comprises the following steps of: (1) cleaning a dragon fruit, splitting, and taking dragonfruit peel; (2) adding a softening color protection liquid into the peel, and pulping to obtain a peel thick liquid; (3) heating, extracting, screening, filtering and neutralizing the peel thick liquid to obtain a peel extraction liquid; (4) mixing the peel extraction liquid, flour and ingredients, kneading dough, and shaping to obtain a shaped dough sheet; (5) cooling, rolling, flattening and thinning the shaped dough sheet, coating with sweet cream, oppositely folding, flattening, coating with oil, laminating, oppositely cutting, rolling the dough sheet, quantitatively cutting and shaping,and automatically putting in a plate to obtain a bread plate filled with a bread base; and (6) putting the bread plate filled with the bread base in a bread plate rack, controlling conditions to carryout fermentation, baking, and removing from the plate to obtain the nutrient health-care shredded bread. The invention has the advantages that cost is low, flavor is good, the nutrient and active ingredients are fully kept and utilized, the content of coarse fibers is high, a nutrient ingredient proportion is reasonable, a use ratio of peel raw materials is high, a structure is even, elasticity is good, and mechanization can be realized.