Using data from the Programme for International Student Assessment(PISA), this study examined how the disparity in children's expected occupational status based on parental socioeconomic status(SES) had changed between the cohort born in 1984 and the cohort born in 2006. Results showed significant socioeconomic differences in children's expected occupational status, regardless of the birth cohort. Specifically, children with parents in higher socioeconomic positions tended to aspire to professions with high occupational status, such as doctors and lawyers, while children with parents in lower socioeconomic positions mainly expressed aspirations for occupations with lower status, such as beauticians or cooks. However, there was no increasing trend in socioeconomic disparities in children’s expected occupational status over time. Instead, when comparing the cohorts born in 1984 and 2006, socioeconomic disparities in children’s expected occupational status decreased slightly but significantly. These findings provide important evidence regarding changes in the stratification of dreams among Korean adolescents over time.