Recently, there is a trend in western leadership¡¦s studies emphasizing the influences of a leader¡¦s values and visions on subordinates. However, there is no one among various leadership researches in Taiwan especially emphasizing the influences of the leader¡¦s vision or value on leadership effectiveness. Based on the viewpoint that measuring the CEO¡¦s management values by his personal values is inappropriate, the purpose of this study is to investigate the influence of CEO¡¦s management values on leadership effectiveness from the perceptiveness of subordinates¡¦ perceptions. Totally, 47 institutions participated in this research, which consisted of 43 CEO interviews, 45 management value questionnaires from CEOs, and 252 subordinate questionnaires about their perceptions of the CEO¡¦S management value and his leadership effectiveness. In addiction to having found out the operational definition and 13 representative index of the ¡§CEO management value¡¨, this study further examined the construct validity of the ¡§CEO management value¡¨ scale. Besides, two other conclusive findings found are as following: First, the degree that subordinates¡¦ perceptions of the CEO¡¦S management value, regardless of ideological or pragmatic, would positively influence subordinates¡¦ evaluation about the CEO¡¦S leadership effectiveness. However, having compared the two dimensions of the CEO¡¦S management value, we found out that the ideological value was more influential than pragmatic value. Secondly, when compared with those of different perceptual outcome, subordinates, whose perceptions of the CEO¡¦S management value are the same as his/her CEO¡¦s self-perception, would give higher evaluation about his/her CEO¡¦S leadership effectiveness. This result emphasizes the importance that the CEO needs to communicate his management values to his subordinates.