This article examines the relation of perceived career plateau to job satisfaction and organizational commitment and the moderating effects of career motivation and perceived supervisor support on the relationships between perceived career plateau and the two dependent variables. Data are collected from 209 white-collar employees who are more than 30 years old and who come from a wide variety of organizations. The results of this study show that perceived career plateau is negatively correlated with job satisfaction and organizational commitment. The results of hierarchical multiple regression analyses indicate that career motivation plays a significant moderating role only on the relationship between perceived career plateau and organizational commitment. Perceived supervisor support moderates the relationships between perceived career plateau and the two dependent variables. Based on the results, the implications and limitations of this study and the directions for future research are discussed. (Contains 3 tables.)