基于激励的“挤出效应”，研究面子观对个体知识共享行为的影响，以及团队奖罚的跨层次调节效应。以74个知识团队为样本的跨层次实证分析表明：挣面子与知识共享正相关，而丢面子与知识共享负相关；团队奖罚会弱化挣面子对知识共享的促进作用，也会弱化丢面子对知识共享的抑制作用，表明团队奖罚对面子的作用存在挤出效应。最后，提出了相应的管理建议与对策。

The relationship between Mianzi and knowledge sharing (KS) on individual level, and the moderation effect of team sanction on the relationship are studied based on crowding-out effect. The multilevel analysis of 74 knowledge team sample using HLM shows that Mianzigain is positively related with KS and the relationship is negatively moderated by team sanction, Mianziloss is negatively related with KS and the relationship is negatively moderated by team sanction. The crowding-out effect of team sanction on Mianzi is significant. At last, some suggestion are provided in this paper.