A biocompatible implant composite particle and the method of making the same are provided. The implant composite particle includes a bone filler particle and a plurality of fibers, in which each fiber is partially embedded in the bone filler particle, and has a free portion extending from a surface of the bone filler particle. Both bone filler particle and fibers are biocompatible. The biocompatible implant composite can be used in a bone filler material for bone defects.