In China, a series of education reform has been conducted in recent years in response to the economic and social changes, and these reforms bring new challenges to the school management to some extents. A recent hot academic research topic is the school management team (SMTs) in school, that researchers concern the correlation between other school administrative factors and the performance SMTs. As one of the similar attempts, this research explores the influence of the instructional leadership, the perception of teamwork, the experience of teamwork-on-teamwork performance of SMTs in secondary schools. This research selects the collegial model as the theoretical model. Quantitative research was selected with data collected from 216 teachers in 14 schools in Guangdong. Findings reveal that the perception of teamwork and the experience of teamwork is positively correlated to the teachers’ teamwork performance, while instructional leadership is not significantly correlated with the teamwork performance of teachers.