This study collected data from provinces of Hubei, Hunan, Fujian, Guangdong and Zhejiang and got a sample of 93 work teams comprising 614 employees from enterprises and research institutions to explore how employee voice impact on team creativity using multi-regression method. The results showed that voice behavior had a significant positive influence on team creativity. Voice behavior’s positive effect on team creativity was not only partially mediated by specialization and credibility dimensions of transactive memory system, but also fully mediated by team knowledge sharing. In addition, team learning behavior was found to have significant moderation effect on the relationship between voice behavior and team creativity.