Abstract: Electrically conductible concrete formed by adding graphite into common concrete possesses good mechanical and electrical properties of which the specimens were tested for their conductivity and mechanical properties by direct-current measurement in the whole process under the actions of single and cyclic loading. The results show that the conductivity measured by DC is easy to do and stable, by which the stress-strain and conductivity-strain relationships are obviously correspondent with each other and the changes in conductivity and stress are almost synchronous, i.e., the conductivity changes a little when stress does. Furthermore, the peak values of conductivity occur near those of stress: 53% before those of stress, 27% at the same time and 20% after them. The curves of the process of conductivity-strain relationships shows small discretization, with the slope of curves' ascending portion in a range from 74.1° to 86.6°. The change of conductivity can represent how the concrete has been damaged intrinsically.