This study clarifies the importance, advantages, and constituents of the professional image by appearance management in the workplace. In-depth interviews were conducted with 8 participants who have over 8 years experience in their respective fields. The transcripts of the interview were classified according to a card classification method. The results of the study were as follows: First, the professional image by appearance management is important, because there is a special treatment by image in interaction on business. Second, the advantages of the professional image were to achieve a career opportunity, improve interpersonal relationships, obtain special treatment or protection from a biased angle, and increase business reliability. Third, the constituents of the professional image were conscientiousness and self-management skills, assertive and open attitudes, leadership, interpersonal skills, customer-satisfaction spirit, expert knowledge and skills, and confidence in the business results.