The aim of this study was to examine the internal consistency reliability, test-retest reliability, factorial structure validity, and convergent validity of a Korean version of the Satisfaction With Life Scale adapted for children (K-SWLS-C). Participants consisted of 653 elementary school students (48% were male). The internal consistency of the K-SWLS-C was .93, and its test-retest reliability was .62 for inter-test period of 4 weeks. Confirmatory factor analysis showed that the K-SWLS-C had the unifactorial structure reported in previous studies. The K-SWLS-C was found to be significantly associated with domains of student life satisfaction. The findings of the present study suggest that the K-SWLS-C is a well-developed instrument for measuring life satisfaction among Korean children.