The significance of this study is to suggest basic data for political and practical measures to prepare for a super-aged society by understanding the daily life and welfare needs through analysis of the life course of socially isolated elderly. The subjects of this study were eight elderly people aged 65 years or older. This is a qualitative study with in-depth interview analysis of socially isolated processes and daily life experiences whose purpose is to explore the elderly welfare policy and the social service plan through the voices of the elderly isolated in blind spots. The experience of the elderly living alone and socially isolated revealed the following research results. First, isolated elderly people were analyzed according state of socially isolated life course and physical disease. Second, they were experiencing social isolation due to difficulties such as lack of communication with family members and relatives, solitude, and loneliness. Therefore, it is necessary to expand national medical and financial support to the isolated elderly, reorganize the road-map of community support systems for the isolated elderly, establish social networks for social connection, and enact convergent measures of an elderly friendly community infrastructure system.