This paper explored the relationships among career development, personality trait, and organizational commitment and examines whether career development mediates the relationship between personality trait and organizational commitment. The sample was 275 sport communication technology talents in Taiwan. The instrument included the Personality Trait Scale, Career Development Scale, and Organizational Commitment Scale. The relationship between personality trait and organizational commitment was mediated by career development. According the findings, some suggestions and recommendations for administration agency, and further researchers were made.