A method of controlling the operation of an animal training device which is worn around the neck of an animal to apply at least one of an impulse wave and vibration to the animal. Upon pushing a first function switch under the condition that a security code number is set by a security code setting unit, the level of the impulse wave to be applied to the animal is set by a volume adjustment unit and a mode selector is set to any one of a vibration position, vibration/impulse wave position, impulse wave position, a receiver receives a radio signal containing such data and thus applies at least one of the vibration and impulse wave to the animal to train it. Further, the volume adjustment unit employs a variable resistor which can finitely adjust the impulse wave level. Therefore, only a vibration or a low-level impulse wave can be applied to an animal over-sensitive to an electrical stimulation to readily train it.