The study mainly takes the viewpoints of civil staff members to investigate the perception of organizational change, and whether the perception has caused any impacts on organizational learning behavior, organizational commitment and knowledge sharing. Besides, the study investigates whether knowledge sharing varies with organizational learning behavior and organizational commitment. Therefore, the study also takes organizational learning behavior and organizational commitment as the mediating variables in the deeper analysis. Taking the staff members of Different Departments under the Executive Yuan as the targets, the study distributed 1,500 questionnaires to them, and collected 826 questionnaires in return. Having deducted 79 invalid questionnaires with incomplete answers, there were 747 valid questionnaires received, achieving a return rate of valid questionnaires at 49.8%. Through the use of SEM, the study proves the relationship of impacts among research variables. The proved results show that the perception of organizational change has significant positive impacts on organizational learning behavior. Between the perception of organizational change and knowledge sharing, organizational learning behavior causes mediating effects. And between organizational learning behavior and knowledge sharing, organizational commitment causes mediating effects. Since different staff members have varied individual characteristics, significant difference can be found in the perception of organizational change, organizational learning behavior and organizational commitment towards knowledge sharing.