Failure in breastfeeding can be caused by various factors, one of which is the birth weight infants. Babies with low birth weight, or less than 2500 grams at risk of breastfeeding problems caused by a weak suction reflex therefore the purpose of this study was to describe breastfeeding infants of low birth weight in Perinatology Unit. Descriptive cross sectional approach was used in this study. Non-probability sampling with random sampling was used as the technique of collecting the sample with a sample of 24. Research showed that breastfeeding infants of low birth weight by 24, which is feeding through direct breastfeeding and breastfeeding squeeze. The way of breastfeeding was manually by hand as much as 54.2% (13/24) and manually by means of a pump 45.8% (11/24) using cup feeding and orogastric and syringe. It was with a frequency of more than eight times in 24 hours with interval of two to three hours administration. Among women who breastfed their babies directly, the length of time needed for breastfeeding was 10-15 minutes on each breast in turn. Most mothers did not experience any problems during breastfeeding both before and after breastfeeding. This Illustrates that BBLR infants in perinatology able to acquire breast milk even with low birth weight.