A method and a device for communication with an animal capable of surely transmitting an instruction to the animal so that the animal can take an appropriate action when a police dog or a rescue dog goes away to such a place that people's voice does not reach the dog or comes into a noisy state during chasing or searching; the method, comprising the steps of installing a bone conductive speaker and a radio having at least a receiving function are installed on the animal, transmitting an instruction to the animal through the bone conductive speaker and, desirably, installing a microphone, a loud speaker, or a camera on the animal.