This study aims to explore the effects of parental socioeconomic status (SES) on children’s developmental outcomes (e.g., peer relationship, happiness, and depression). Additionally, the mediating roles of parental depressive symptoms and parent-child interactions (PCIs, including both positive and negative PCI) are also of particular interest. A secondary data analysis of the 2014 China Family Panel Studies (CFPS) is conducted, using data of 863 mainland China’s families. The results indicate child developmental outcomes are majorly associat...