Provided are: a method for controlling characteristics of a ceramic carbon composite in which an interfacial layer of a ceramic is formed throughout a carbonaceous material and the interfacial layer of the ceramic has a continuous three-dimensional network throughout the carbonaceous material; and a ceramic carbon composite whose characteristics have been controlled. In a method for controlling characteristics of a ceramic carbon composite (1) in which an interfacial layer (3) of a ceramic is formed throughout a carbonaceous material (2) and the interfacial layer (3) of the ceramic has a continuous three-dimensional network throughout the carbonaceous material (2), the characteristics of the ceramic carbon composite (1) is controlled by specifying and selecting at least one of a shape, a hardness, and a degree of graphitization of the carbonaceous material Thus, the ceramic carbon composite (1) having the characteristics controlled without depending on the control of manufacturing conditions can be obtained.