Abstract: The important role of knowledge sharing in organizations has become increasingly prominent, and has been paid more and more attention by scholars. However, many organizations expect employees to actively share knowledge with colleagues, and many employees choose to hide their knowledge when faced with colleagues asking for help. Some scholars analyze the causes and believe that employees’ knowledge hiding behaviors are probably related to their work pressure. Therefore, 405 valid questionnaires are collected from the perspective of time pressure, the most common work pressure faced by employees, to explore the mechanism of how time pressure influences different nature on knowledge hiding. The results show that: (1) challenging time pressure has a significant positive impact on intrinsic motivation, but has a significant negative impact on emotional exhaustion and knowledge hiding. (2) obstructive time pressure has a significant negative impact on intrinsic motivation, but a significant positive impact on emotional exhaustion and knowledge hiding. (3) intrinsic motivation and emotional exhaustion play a mediator role between time pressure and knowledge hiding. (4) temporal leadership plays a negative mediating role between obstructive time pressure and intrinsic motivation and between obstructive time pressure and emotional exhaustion. Under the highly temporal leadership, the negative influence of obstructive time pressure on employees’ intrinsic motivation and the positive influence of emotional exhaustion will be weaker.

Key words: time pressure, temporal leadership, intrinsic motivation, emotional exhaustion, knowledge hiding