This article discusses how Breastfeeding self-efficacycan be improved by providing education. One way that can be done to improve the process of increasing Breastfeeding self-efficacy in third trimester pregnant women is to use the Participatory Learning and Action educational method. Participatory Learning and Action is a community-based approach using research and consultancy to provide solutions to mothers' views. Through Participatory Learning and Action it is hoped that mothers will be able to explore and share the knowledge they have as material for making decisions, planning and carrying out actions in making changes to behaviorand objective regarding exclusive breastfeeding.Participatory Learning and Action(PLA) can be regarded as one of the strongest consulting tools, which in this method offers the opportunity to go beyond mere consultation and promote active participation of the community in the problems and interventions that shape their lives.(1). Keywords: Breastfeeding Self Efficacy, Participatory Learning And Action Method; Third Trimester Pregnant Women