Background: Breast milk is the best nutrient for infant, providing everything the babies need to survive and drink plenty of fluids during the first six months and that is perfect combination of various nutrients. Besides that, breast milk is the best way to reduce infant morbidity and mortality from infectious diseases, which often affect toddlers in developing countries who are not getting the appropriate developmental nutrition. Meanwhile, the level of national initiation is checked according to mother’s age. Young mother (< 19 years old) tends to rarely breastfeed (83.6 percent) compared with the older one (88.5 percent- 92.7 percent). Therefore, the scoping review aims to explore the description about exclusive breastfeeding on mother with early marriage. Method: the method of this scoping review used Arksey & O’Malley framework consisting of five stages such as identifying scoping review question by framework PEOs; identifying relevant article through relevant database, such as Pubmed, Proquest, ScienceDirect and finding Grey literature through Google Scholar; selecting the article with Prism Flowchart that is used to draw the article search flow, doing critical appraisal to assess the quality of article; doing data charting.