Objectives: To examine the stress-buffering effect of coping strategies on the adverse effects of interrole conflict on the mental health of employed family caregivers, and clarify the moderating role of attentional control on this stress-buffering effect. Methods: Data were drawn from a two-wave longitudinal online survey of employed Japanese family caregivers of people with dementia (263 males, 116 females; age 51.54 ± 9.07 years).