Preparation method of silk fibers with high health-care property

The invention discloses a preparation method of silk fibers with high health-care property. The preparation method is characterized by comprising the following steps: A, degumming silkworm cocoons, drying the degummed silkworm cocoons, completely dissolving the dried silkworm cocoons into lithium bromide solution, and performing dialysis, high-speed centrifugation and concentration, so as to obtain silk protein solution; B, adding pearl powder sol into the silk protein solution, adding glycerol after fully stirring, then adding sodium chloride, and uniformly stirring so as to obtain spinning solution; C, adding hydrogen peroxide into the spinning solution, regulating the temperature to 45-55 DEG C, continuously stirring, cooling, and dropping sodium nitrite solution into an ice-water bath,so as to obtain modified spinning solution; and D, spinning the modified spinning solution, soaking silk spun out into ethanol aqueous solution, and performing heat treatment, so as to obtain the silk fibers with high health