[Problems] To provide a medical material having such a structure that enables even diffusion and distribution in the material of a sufficient amount a substance necessary for a medical treatment. [Means for Solving Problems] A medical material 10 composed of a porous three-dimensional construct 11, which is a rectangular parallelepiped having a porosity of from 20 to 97% and pores 12, 13, 14 and 15 provided in the main body. From this pore 12, a substance such as calcium phosphate or ceramics apatite and/or a physiologically active cell, tissue or protein and a substance suitable for exerting the functions thereof are introduced.