(1) Objectives: The aim of this study was to examine the relationship between mindful parenting and children’s creative tendencies and to investigate the mediating role of parent–child intimacy and connectedness to nature in the relationship between mindful parenting and children’s creative tendencies. (2) Methods: In this cross-sectional study, nearly 800 mothers of children aged 3–6 were enrolled. General sociodemographic data, the Mindfulness in Parenting Questionnaire (MIPQ), the Creativity Assessment Packet (CAP), the Child–Parent Relationship Scale—Short Form (CPRS-SF), and the Connectedness to Nature Index—Parents of Preschool Children (CNI-PPC) were all included in the questionnaire survey. (3) Results: There were significant positive correlations among mindful parenting, parent–child intimacy, connectedness to nature, and children’s creative tendencies. Mindful parenting had a positive predictive effect on children’s creative tendencies. Parent–child intimacy played a mediating role between mindful parenting and children’s creative tendencies. Connectedness to nature played a mediating role between mindful parenting and children’s creative tendencies. The correlation between mindful parenting and children’s creative tendencies may be impacted by the chain mediation effects of parent–child intimacy and connectedness to nature. (4) Conclusions: By promoting parent–child intimacy and connectedness to nature, and by utilizing the chain mediating effects of both, mindful parenting positively impacted children’s creative tendencies.