Employees' voice could benefi t organizational development and progress; however, emotional mechanism to induce such a behavior still requires further research. This study investigates the relations between leaders' diff erent emotional expression and employees' voice behavior in China. By investigating 215 pairs of superior-subordinate samples of enterprises in China, it is discovered that leaders' positive emotional expression could enhance employees' voice, and the negative emotional expression would negatively aff ect employees' voice behavior. Meanwhile, subordinates' liking to superiors shows partial mediation eff ects on the eff ect of leaders' positive/negative emotional expression on employees' voice behavior. The research results reveal that leaders emphasize the function of positive emotional expression in organizational management. Future research could further investigate various infl uential paths and distinguish leaders' emotional expression.