Objective: To examine the characteristics of interventions to support family caregivers of patients with advanced cancer. Methods: Five databases (CINAHL, Medline, PsycINFO, Web of Science, and the Cochrane Library) were searched for English language articles of intervention studies utilizing randomized controlled trials or quasi-experimental designs, reporting caregiver-related outcomes of interventions for family caregivers caring for patients with advanced cancer at home. Results: A total of 11 studies met the inclusion criteria. Based on these studies, the types of interventions were categorized into psychosocial, educational, or both. The characteristics of interventions varied. Most interventions demonstrated statistically significant results of reducing psychological distress and caregiving burden and improving quality of life, self-efficacy, and competence for caregiving. However, there was inconsistency in the use of measures. Conclusions: Most studies showed positive effects of the interventions on caregiver-specific outcomes, yet direct comparisons of the effectiveness were limited. There is a lack of research aimed to support family caregivers' physical health. Practice Implications: Given caregivers' needs to maintain their wellbeing and the positive effects of support for them, research examining long-term efficacy of interventions and measuring objective health outcomes with rigorous quality of studies is still needed for better outcomes for family caregivers of patients with advanced cancer.