An external feeding device for feeding to an electric stimulation device can be reduced in size. The electric stimulation device is equipped with a main body block, which has a stimulation circuit block and a support body. The stimulation circuit block has a stimulation electrode for stimulating nerves in a living body or muscles of a living body and a stimulation circuit electrically connected to the stimulation electrode and applying a stimulation signal to the stimulation electrode. The support body is connected to the stimulation circuit block and holds the implant position of the stimulation electrode in the living body. The electric stimulation device is further equipped with a fixation body formed so as to be connectable to the base end side of the main body block. The fixation body includes a fixation-body-side coil portion for receiving electromagnetic waves oscillated from an external device. When the fixation body is connected to the main body block, the fixation-body-side coil portion is electrically connected to the stimulation circuit, which makes it possible to perform feeding depending on the electromagnetic waves to and/or communication with the stimulation circuit.