This study aimed at demonstrating an effect of contribution to development of the company,an awareness of current condition,and group identity on change orientation in department in organization. The target of analysis was 297 office workers in eight companies. High membership workers had higher change orientation than low membership workers in a department which had been contributed much to the development of the company. Compared among high membership workers,workers in a department which had contributed to a company had higher change orientation those who in a department with less contribution. Each department is required to enhance membership in each department and contribute to development of companies in enhancing employees’ change orientation.