The purpose of this investigation was showing clearly what is required, in order to recognize junior high school art to be a useful subject. By it, it is shown clearly what is important for the Art Education in lifelong-learning date. Therefore, the investigation for an adult was conducted. As a result of analyzing results of an investigation, the following thing became clear : 1. Those who were investigated had liked Art, when they were the third-year students in junior high school. 2. Moreover, they thought that Art was useful in respect of sentiment, such as a rich alignment now. 3. In order for an adult to have a useful-feeling to Art, it was important at the time of the third-year student in a junior high school that the achievement of art is high. 4. It was still more important at the time of the third-year student in a junior high school to like art.