AbstractBackgroundMost people with dementia are cared for by family members. The workload associated with caregiving tasks is often associated with physical, mental, and social impairment. In line with the WHO’s Global Action Plan on Dementia 2017‐2025 (WHO, 2017), calling for the provision of affordable and accessible interventions for dementia caregivers, we tested an eHealth intervention to improve self‐efficacy and mental health in dementia caregivers.Method8‐week eHealth psycho‐educational intervention aiming at increasing the knowledge of neurocognitive disorders, their at‐home management, and the presence of national and local support services. The intervention was conducted by an experienced psychotherapist assisted by a professional expert (e.g., geriatrician, educator, social worker, lawyer and advocacy patient organisations), according to the topic of each meeting. A pre‐post study design was used and validated psychosocial self‐report questionnaires were administered before and after the intervention (e.g., State‐Trait Anxiety Inventory ‐STAI‐Y1‐2, Zarit Burden Interview ‐ZBI, Beck Depression Inventory‐II BDI‐II, Revised Scale of Caregiving Self‐Efficacy ‐RSCSE). Pre‐post differences were tested with paired t‐test, correlations between scales with Pearson correlation coefficientResult41 caregivers (mean age: 57; range 31‐82; female: 78%; children: 61%) completed the study. The intervention had high participation (88% attended at least seven meetings). Following the intervention, the self‐efficacy regarding the ability to respond to the patient’s disruptive behaviours effectively improved (RSCSE‐RDB subscale: t(40) = ‐2.817, p = 0.007), anxiety and burden levels decreased (STAI‐Y1: t(40) = 3.170, p = 0.003; STAI‐Y2: t(40) = 2.327, p = 0.025; ZBI: t(40) = 2.290, p = 0.027), while depression scores did not change significantly (BDI‐II: t(40) = 1.164, p = 0.251). Correlation analysis showed that the change of STAI‐Y1 was positively associated with the change of STAY‐Y2 (r = 0.440, p = 0.004), and the increase of RSCE‐RDB subscale was positively associated with the improvement of caregiver burden (r = 0.430, p = 0.005).ConclusionOur study showed that the eHealth intervention improved the caregiver’s ability to deal effectively with the disruptive behaviours of patients, and this change was associated with a reduction of caregiver burden. The results and participation rates support the implementation of online psycho‐educational interventions to meet the need for knowledge of disease management and avoid detrimental effects on caregivers’ health.