This study amis to identify the substantive meaning of case management performed by short term youth shelter workers in Gyeonggi Province, Korea. To this end, a qualitative research was conducted to understand the concept of case management and learn how to practice case management. It is found that case management process consists of engagement, assessment and intervention plan, intervention implementation, termination and evaluation, and follow-up. Success factors for case management include a clear need and initiative of client, integrated support focused on holistic recovery of clients, support for everyday life, and client-oriented intervention, while failure factors include immature and rapid intervention focusing on superficial desire, and problem-focused delivery-oriented intervention. The difficulty in case management is mostly due to short term intervention, perspective confusion, administrative inefficiency, unrealistic evaluation criteria, excessive work stress, and high staff turnover. The results of this study is expected to be used to guide the direction of youth shelter projects by the Ministry of Gender Equality and Family in South Korea.