Coping styles can be improved by dyadic palliative care interventions and may alleviate patients' and family caregivers' distress. Moreover, family caregivers' preloss resilience protects against depression after bereavement. This study aimed to determine the types of coping styles can be encouraged to increase resilience. A self-reported questionnaire survey was administered to family caregivers at the 4 palliative care units, and their resilience was assessed using the Connor-Davidson Resilience Scale (CD-RISC) and their coping styles were assessed using the Brief Coping Orientation to Problem Experienced, as well as their background characteristics. Among 291 caregivers with a mean CD-RISC score of 56.2 (standard deviation: 16.13), internal locus of control, educational level, and history of psychotropic drug use were associated with resilience. After adjusting for the aforementioned factors, more frequent use of positive coping styles such as active coping (Spearman's ρ = 0.29), acceptance (ρ = 0.29), positive reframing (ρ = 0.29), planning (ρ = 0.24), and humor (ρ = 0.18), was found to be associated with higher resilience. On the contrary, more frequent use of negative coping styles such as behavioral disengagement (ρ = -0.38), self-blame (ρ = -0.27), and denial (ρ = -0.14) was found to be associated with less resilience. By assessing internal locus of control, educational level, and history of psychotropic medication use of family caregivers, as factors associated with their respective resilience, may help identify less resilient family caregivers who are at risk for developing major depression after bereavement. In addition, coping skill-based educational interventions targeting patients and their family caregivers that focus on specific coping styles associated with resilience may increase family caregivers' resilience, resulting in less emotional distress and a lower risk of major depression after bereavement.