Background: The present study aimed to explore psychometric properties of Korean version of the Posttraumatic Growth Inventory for Children-Revised (PTGI-C-R), and related variables. Methods: The PTGI-C-R was translated into Korean and 716 children and adolescents in a general population sample completed a self-report battery. Results: 361 participants reported experiencing of traumatic event and 145 among them showed clinical symptoms. In clinical group, Korean version of PTGI-C-R has exhibited good internal consistency and construct validity. Those who experienced traumatic event reported more PTG than unexperienced group. PTG was positively related with resilience, optimism, and rumination, but negatively related with depression and anxiety, also nonlinearly related with intensity of perceived stress. Conclusions: This study found the distinct changes of PTG from normative maturation by comparing those who experienced traumatic event and those who did not.