The invention relates to a composite particle, including a granular body and a plurality of fibers. The granular body has a particle diameter of between 5 &mgrm and 150 &mgrm. The fibers which are constituted by a biocompatible polymer have an average fiber length that is one to twenty times the particle diameter of the granular body, and each of the fibers is partially covered in the granular body. The invention also provides a manufacturing method for the composite particle and a composite material served for a bone defect filling material.
