Impression management plays a key part in social interaction. But its effects on self-concept change are merely studied. So this study investigates whether impression management will affect peoples‘ self-concept based on two-component model, studying the motivation of impression management and construction of it. Also, impression management as a certain behavior is affected by attitudes towards targets. This study adopt a speed-dating style experiment, requires participants evaluate their attitudes for each conversation partners and their feelings about themselves immediately after each conversation. The results demonstrate that people‘s attitudes towards targets, including the feeling of liking and evaluation of being liked, are related to how much effort people put into impression management. However, this attitude almost has nothing to do with how people manage their impressions, either by verbal behavior or nonverbal behavior. Furthermore, impression management has effect on people‘s self-concept shift. The harder people try to convey good images the more self-concept changes. Similarly, people choosing more positive nonverbal behavior are more likely to positively evaluate themselves, while negative nonverbal behavior is related to reduce of self-concept. However, there are merely relationships between verbal behavior and self-concept change, for not controlling individual differences.