PURPOSE: To enable the effective use of a robot actor by a method wherein a human feeling a motion are adopted to the robot actor, and by using a high information data base, hazardous performance being impossible for a man to make is effected by the robot actor.

CONSTITUTION: When a robot is acted, only a mechanical motion is made and a human motion and feeling are not brought with the robot actor. In which case, a human feeling and motion are adopted to the robot. For example, expression of a feeling is such that a tension and relaxation rule is applied to aspiration movement, which is transmitted to a face and a body to act. When an ordinary man acts, the form of action created once can not be repeated two times, and when the man tries to reproduce it accurately, an action itself, reversely, is broken. The robot actor can repeatedly act even many times by means of information inputted once. Or, a data base of information being higher than a man is used. Hazardous performance being impossible for a man to make is made by the robot actor. This constitution improves an effect of using the robot actor.