A biodegradable filler for restoration of alveolar bones is disclosed, which includes: first cross-linked collagen fibers prepared from reacting Non-crosslinked collagen fibers with a cross-linking agent; and supporting particles which are biomedical ceramic particles, bioactive glass, or a combination thereof, and distributed among the first cross-linked collagen fibers.本發明係有關於一種齒槽骨修復用之生物可分解性填補物,包括:第一交聯型膠原蛋白纖維,係藉由一交聯劑與未交聯之膠原蛋白纖維反應所製得;以及支持顆粒,其為生醫陶瓷顆粒、生物活性玻璃或其組合,且其分布於該些第一交聯型膠原蛋白纖維中。