The invention provides a preparation method for collagen elastin silk noodle, relating to the preparation method for healthcare food, which is characterized in that the food is prepared by the steps of selecting materials, washing, undergoing acid and alkali treatment, boiling, chopping, puffing, shaping, drying, preparing into product, packing and sterilizing. The product has the beneficial effects of time and labor saving, full utilization of large amount of pork skin resources and industrial treatment. The product has general equilibrium nutritionally, and the preparation of which agrees with the nation-specified sanitary standards. In addition, the product contains five times higher of protein than pork. The combination of the praline and hydroxyproline in the collagen with the water in human skin can improve the water storage capability of the cell tissues with low water storage, improve the contents of the cell tissues, bringing delicateness and whiteness to human skin, reducing wrinkles, delaying senility, strengthening the elasticity of the blood vessel, and preventing cardiovascular diseases. Therefore the product is an ideal healthcare product for everybody to be beautiful and thin.