Recently, it has been claimed that Japanese style management needs to be reconstructed. In this article, in order to examine what part of Japanese style management ought to be reconstructed, the writer reviews researches on Japanese business employees'job satisfaction and attempts to reveal the structure of their working mind. Findings indicate that Japanese business employees'working mind consists of not only job satisfaction but also satisfaction in company. It is also indicated that Japanese business employees'voluntary individual turnover is more influenced by satisfaction in company than job satisfaction. The writer further proposes that future Japanese style management should attach greater importance to enhancing business employees'job satisfaction.