By the increasing using of global teams within organization, it is eagerly for us to understand how the ¡§team¡¨ form and work, and more importantly, ¡§what¡¨ makes it work. This research focus on the trust issue, which may be increased by proper managerial behaviors and HRM practices to increase knowledge innovation. The research was conducted using a qualitative approach; case details were collected from global teams involving at least two different nationalities. The research aims to investigate the influences of managerial behavior, HRM practices and trust on knowledge innovation in global teams. Findings reveal that different industries of global team tend to apply different knowledge innovation strategies. Moreover, HRM practices and managerial behaviours have significant and positive impacts on trust to raise knowledge innovation in global teams.