According to embodiments, a composite material is disclosed. The composite material has a multi-layered structure, wherein the multi-layered structure is constituted by a hydrophilic biodegradable polymer and a collagen. In particular, the collagen is fiber-shaped and has a fiber length from 1.5mm to 50mm.本發明提供一種複合材料,包含由一膠原蛋白及一親水性生物可分解高分子所構成的一多層層狀結構,其中該膠原蛋白係為纖維狀,纖維長度係介於1.5mm至50mm之間。