Abstract: The present invention relates to the field of functional materials for medical use, and particularly to a biomimetic bone composite material, a preparation method and uses thereof. The biomimetic bone composite material provided by the invention is prepared from the raw material containing the following components: gelatin and/or collagen, hydroxyapatite and a silicon source. The present invention also provides a preparation method of the composite material and uses thereof in preparing bone repair materials. The highly biomimetic composite material with fibrous network structure prepared by the present invention can simulate the microenvironment similar to natural bone for cells, meet the biological requirements of bone tissue engineering, and is expected to become an ideal bioactive scaffold for bone repair.