The 11th edition of the World Health Organization’s International Classification of Diseases(ICD-11) provides a new diagnostic approach for personality disorders. Accordingly, Bach et al.(2021) have recently developed a self-report measure, the Personality Disorder Severity ICD-11(PDS-ICD-11), to assess personality severity. This study aims to translate the PDS-ICD-11 into Korean and examine its reliability and validity in university students(N=433). Results are as follows. First, the PDS-ICD-11 showed good internal consistency and test-retest reliability. Second, results of exploratory factor analysis confirmed that the Korean version of the PDS-ICD-11 consisted of three factors: self-functioning/psychological impairment/interpersonal-functioning, emotional manifestations, and behavioral manifestations. Third, as a result of confirmatory factor analysis, model fit indices of three-factor structure were acceptable as compared to the one-factor structure. Fourth, PDS-ICD-11 had significant positive correlations with negative affectivity, detachment, disinhibition, and psychoticism of K-PID-SF. It was also significantly correlated with negative affectivity, detachment, dissociality, disinhibition, and borderline features among domains of the PAQ-11. However, it was not correlated with anankastia. Moreover, it was positively correlated with neuroticism but negatively correlated with extraversion, openness, agreeableness, and conscientiousness in the NEO-FFI. SAPAS-SR, SFQ, and DASS-21 were also significantly correlated with PDS-ICD-11. In COMOSWB, total score, satisfaction, and positive emotion had significant negative correlations with PDS-ICD-11. However, negative emotion had a significant positive correlation with PDS-ICD-11. This study suggested that the Korean version of the PDS-ICD-11 is a valid and reliable measure of ICD-11 personality severity. Implications and limitations of this study were also discussed.