This is a protocol for a Cochrane Review (intervention). The objectives are as follows: To assess the benefits of home visiting models for postpartum depression amongst mothers of young children, where either the mothers or the children are enrolled in early childhood home visiting programs or interventions. To identify core components essential for a home visiting program to effectively address postpartum depression in mothers of young children. The hypothesized core components of such a program include the priority level given to PPD intervention, the type of home visitors, the intensity of the program, the percentage of BIPOC participants, and the service recipients' baseline level of and risk for depression.