Preparation method of medical collagen composite porous scaffold

The invention discloses a preparation method of a medical collagen composite porous scaffold, and belongs to the technical field of preparation of medical scaffolds. The preparation method comprises the following steps: firstly, stirring and dissolving phospholipid and a solvent, and conducting vacuum concentration, so that a concentrated solution is prepared; then, mixing the concentrated solution and a buffer solution and conducting ultrasonic dispersion, and implementing freezing and thawing cycle, so that a mixed solution is prepared; then, grinding and cutting a magnesium wire, cleaning the magnesium wire by virtue of acetone, ethanol and water, and implementing a heating reaction of cleaned magnesium wire short fibers and an oxidized mixed solution, so that pre-processed magnesium wire short fibers are prepared; then, mixing the pre-processed magnesium wire short fibers and the mixed solution, and conducting impregnating and modifying; and finally, stirring and mixing the modified magnesium wire short f