An object of the present invention is to provide a porous composite that has adequate bending strength and excellent compressive strength and that contains OCP and collagen and a bone regeneration material containing this porous composite. The present invention provides a porous composite containing octacalcium phosphate and collagen, and having a bending strength of 0.05 to 0.16 MPa and a compressive strength of 0.3 MPa or more.本發明的課題為提供一種具有適當的撓曲強度且壓縮強度優異之包含有OCP以及膠原蛋白之多孔質複合體以及包含有多孔質複合體之骨頭再生材料。多孔質複合體係包含有第8磷酸鈣與膠原蛋白,且撓曲強度以及壓縮強度分別為0.05MPa至0.16MPa以及0.3MPa以上。b‧‧‧寬度h‧‧‧厚度
