Objectives This study primarily aims to analyze the variables that affect the lifelong competencies of elementary school students, focusing on the variables associated with family background
 Methods To explore the research question, variance analysis, regression analysis, and other analyses were conducted on data from ‘2018 Youth Competency Index Measurement and International Comparative Study V’
 Results With respect to elementary school students’ lifelong competencies, student gender, academic grades, parental education, household income, and school location were found to have a statistically significant influence on them. The analysis of the sub-competencies of the lifelong competencies—critical thinking, the ability to utilize intellectual tools, learning agility, and self-directed learning—were found to be influenced by student gender, school year, academic grades, and household income, and the ability to utilize intellectual tools was influenced by student school year, academic grades, household income, and school location. In addition, student gender, academic grades, parent education, household income, and school location had a statistically significant influence on learning agility, and student gender, school year, academic achievement, family composition, household income, and school location had a statistically significant influence on self-directed learning.
 Conclusions Based on the analysis results of the variables that affect the lifelong competencies of elementary school students and the sub-competencies of these lifelong competencies, relevant policies and follow-up studies have been proposed