Objective: The aim of our study was to identify the influence of such psychological factors as emotional intelligence and perceived competence on caregiver burden in those who care for patients with advanced cancer.; Method: A total of 50 informal caregivers completed self-report assessments of resilience, perceived competence, emotional regulation, positive aspects of care, emotional distress, and burden. We conducted a quantitative study with a cross-sectional design. Descriptive statistics were obtained. Associations between the different variables were assessed using nonparametric and multiple regression analyses.; Results: Participants were mainly female (88%) and had an average of 20 months of caregiving. Their mean age was 47 years (range = 20-79). More than half of scored high on resilience, positive aspects of caring, and emotional distress, moderately on perceived competence, and low on burden. Most caregivers used cognitive restructuring and social support as coping strategies. Inverse negative correlations were observed among emotional distress, emotional state, and burden with perceived competence and positive aspects of caring (p < 0.05). Significant differences were obtained for emotional distress, cognitive restructuring, and resiliency. Multiple regression analyses demonstrated that perceived competence, resiliency, and positive aspects of caring were the main predictors of burden.; Significance Of Results: Resilience, perceived competence, emotional regulation, and positive aspects of care constitute protective factors against caregiver burden. Taken together, these aspects should be promoted by the healthcare staff in order to facilitate caregiver adaptation and well-being.