This study examines the resilience of preschool teachers and suggests ways to improve their mental health. These suggestions relate to teachers' years of experience and educational background, and focussed on 200 Chinese preschool teachers. The study found that the resilience of veteran Chinese preschool teachers, especially in terms of social support and self-efficacy, is lower than new and mid-career teachers. The study also found that preschool teachers with university degrees have lower self-efficacy than teachers who graduated from training colleges. Based on these results, it is necessary to enrich the veteran preschool teachers' social support and construct a system to enhance their self-efficacy. There is also a need to reinforce the knowledge and skills of preschool teachers with college degrees.