Background: Children of parents with mental illness are not routinely included in psychoeducational and supportive family interventions provided by adult mental health systems. The family, therefore, is an important and, sometimes, the only source of information and support for them. Aim: To understand the experiences of well parents in talking to their children about parental mental illness. Method: This article presents the findings of a qualitative study of the experiences of well parents in talking to their children about parental mental illness. Ten well parents whose spouses were diagnosed with a severe mental illness participated in the study. Socio-demographic information, family details and history of the spouse’s mental illness along with their experiences of talking to children about parental mental illness, the perceived risks and benefits, challenges they faced and the role of others in the process were recorded. Qualitative data were analysed using interpretative phenomenological analysis. Findings: The themes of ‘distancing children from parental mental illness’, ‘avoiding conversations about the illness’, ‘giving and receiving emotional support’, ‘providing explanations of the illness’ and ‘regulating other sources of information’ show the complex ways in which well parents influence their children’s understanding of parental mental illness. The findings are examined in the background of what is known about this topic from the perspective of children or of the parent with illness. Possible ways to support well parents in families affected by parental mental illness are discussed. Conclusion: This study is a step forward in the understanding of how families talk to children about parental mental illness and provides the perspective of the well parent.