This paper investigates the impact of transformational leadership on employee voice behavior. Based on the psychological cognition and social exchange perspectives, the paper further examines the mediating effects of employee psychological safety perceptions and leader member exchange quality in the relationship between transformational leadership and employee voice. The study uses a matched sample of 213 supervisorsubordinate dyads employed in 5 hightech electronic manufacturing firms in Guangzhou to test the hypotheses. The results indicate that transformational leadership is positively related to employee voice behavior, and this effect is fully mediated by employee psychological safety perceptions and leader member exchange quality.