A power transmission communication unit includes a first unit including a first power transmission coil, a first signal transmission coil, and a first case, and a second unit including a second power transmission coil, a second signal transmission coil, and a second case. The first unit and the second unit have a positional relation such that the first power transmission coil and the second power transmission coil face each other along a first coupling axis direction, and the first signal transmission coil and the second signal transmission coil face each other along a second coupling axis direction different from the first coupling axis direction, in a state in which the first case and the second case are fitted to each other.