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.