The invention discloses a preparation method for a natural bone repairing material capable of accelerating osteanagenesis, and belongs to the technical field of medical materials. The preparation method comprises the following steps: calcining by taking ox bones as raw materials, generating a high-intensity alpha-tricalcium phosphate crystal form and a high-degradability high-bioactivity excellent-osteoinductivity beta-tricalcium phosphate crystal form; then, compounding with carboxymethylcellulose to prepare composite powder; mixing with deionized water for carrying out compression moulding, and drying to obtain a bracket material; subsequently, mixing bone morphogenetic protein, platelet-derived growth factors and phosphate buffer to prepare phosphate nutrient solution; then, dipping the bracket material in the phosphate nutrient solution for culture growth; finally, taking out, drying and sterilizing the bracket material to obtain the natural bone repairing material capable of accelerating osteanagenesis. The bone repairing material prepared with the preparation method has the advantages of high mechanical strength, good biocompatibility with the human body, good osteoinductive activity, good biodegradability and a wide application prospect, and bone defect repair can be quickly finished.