Overparenting is an emerging topic in parenting research and has gained increasing attention in media. Most studies have focused on adolescents and young adults in Western countries, while it remains unclear whether overparenting is related to young children's outcomes in non-Western contexts. The present study aimed to examine the mechanism by which overparenting was associated with Chinese young children's social preference. The study surveyed 283 Chinese parents of children aged 36-83 months (mean age = 58.61) to examine parenting practices and child social preference. The results suggested that parents' psychological control and parent--child relationship had serial mediating effects on the relationship between overparenting and young children's social preference in terms of shyness and unsociability. The present study further raised the importance of parenting during early childhood and generated practical implications for parents in China and beyond, encouraging parents to reflect on how their beliefs and practices may influence child outcomes from the early years.