Secure base and mental health in children: a narrative review.

Background And Objective: Childhood is a crucial period for the formation of an individual's attachment type. Previous studies focused more on how to directly intervene in children's mental health problems such as depression, and less on how to improve children's mental health from the perspective of attachment relationship. Secure base, as one of the core concepts of attachment theory, plays an important role in the whole process of children's psychological development.