Cartilage repair material for promoting injury healing and preparation method thereof

The invention provides a cartilage repair material for promoting injury healing and a preparation method thereof, and belongs to the technical field of tissue engineering biological materials. The cartilage repair material is successfully prepared by taking polylactic acid as a framework material, loading tea polyphenol, chondroitin sulfate and magnesium citrate in a specific proportion and combining a specific electrostatic spinning process. The problem that the ability of promoting cartilage tissue healing and stem cell chondrogenic differentiation of a cartilage repair material in the prior art still needs to be improved can be solved. The cartilage repair material provided by the invention not only retains the excellent biocompatibility of the raw materials, but also realizes the synergistic effect of the raw materials, and the raw materials cooperate with each other to achieve the effect of promoting cartilage tissue healing. The cartilage repair material provided by the invention can effectively promote