The purpose of this study was to obtain a deeper understanding of the experiences of family caregivers of terminally ill cancer patients in Shenzhen, Southern China. This study sought to describe how being the main caregiver influences family caregivers’ daily lives. This article reports on the findings from individual interviews with 20 family caregivers of terminally ill cancer patients. The interview transcripts were analyzed using qualitative thematic analysis, which revealed that caring for a cancer patient over the course of his or her illness significantly affected many aspects of family caregivers’ lives. Three major themes were identified in their experiences: (1) challenges, (2) personal growth, and (3) social support. In exploring these themes, this article offers insights into family caregivers’ experiences in Southern China, particularly among family members of terminally ill cancer patients and presents implications for future professional practice, especially oncology social work.