Collagen aggregate compound medical fiber with antibacterial/bacteriostatic function

The invention discloses a collagen aggregate compound medical fiber with an antibacterial/bacteriostatic function. The collagen aggregate compound medical fiber is characterized in that collagen aggregate is taken as a raw material, supercritical CO2 is taken as a medium, and epoxy sodium propyl sulfonate or anhydride is taken as a modifying agent, so that acid-soluble collagen aggregate can be obtained; carboxymethyl cellulose is taken as a raw material, and sodium periodate is taken as an oxidizing agent, so that dialdehyde carboxymethyl cellulose can be obtained; the acid-soluble collagen aggregate, the dialdehyde carboxymethyl cellulose and chitin are organically mixed, and the collagen aggregate compound medical fiber can be finally prepared by the technological processes of stirring, standing and defoaming, spinning and the like. The fiber material has good biological performance, biodegradability and biodegradability of the collagen aggregate as well as excellent antibacterial/bacteriostatic activity and anti-inflammation/wound healing promotion function of the chitin; all the performances of the collagen aggregate compound medical fiber are obviously superior to those of the collagen matrix composite fiber material prepared by taking common collagen as a raw material; the collagen aggregate compound medical fiber can be taken as a biological dressing, a hemostatic material, an absorbable suture, a medical face-lifting material, and the like.