The child-centered beliefs held by educators in early childhood education (ECE) are important in high-quality interactions between children and adults and are central to the recent policy emphasis on childcare quality. Using a national ECE workforce sample of home- and center-based centers from the 2019 National Survey of Early Care and Education (N=7,505), this study examined the relationships between professional development experiences and ECE educators' child-centered beliefs measured by a revised Parental Modernity Scale. We focused on the three PD models of mentoring and coaching, workshops, and college courses, and found that attending college courses was related to greater child-centered beliefs in home-based educators. Mentoring and coaching were found to effectively promote center-based educators’ beliefs. In terms of the contexts that support PD participation in home- and center-based childcare programs, our findings suggest that providing more opportunities to participate in coaching and college courses can offer effective support and thus improve ECE quality. The policy and practical implications of the findings are discussed.