Kindergarten principals' ethical leadership, preschool teachers' perceived organizational support, voice behavior, and work engagement are important components that promote high-quality development in kindergartens. In order to understand the relationship between the four variables, this study conducted an online survey of 819 preschool teachers. The results indicated that (1) ethical leadership was positively correlated with teachers' work engagement; (2) teachers' perceived organizational support and voice behavior play a simple mediating role between ethical leadership and work engagement; and (3) teachers' perceived organizational support and voice behavior also play a chain-mediating role between ethical leadership and work engagement.