The World Health Organization defines babies born before 37 weeks of gestation as preterm babies, and reports that 15 million preterm births occur every year, with approximately one million preterm babies dying due to complications from premature birth (1). Thanks to recent advances, mortality rates in preterm babies have decreased, while morbidity rates have increased. Admission to the neonatal intensive care unit (NICU) is a complex, traumatic life experience for the newborn, and this traumatic process affects the short- and long-term developmental outcomes of the preterm baby. Neurological development is particularly rapid in the 3rd trimester of pregnancy, and exposure to stressors outside the intrauterine environment during this period affects the baby's neurological development (2,3). Most of these premature babies require neonatal intensive care units. Consequently, these babies face many stress factors in the NICU, such as bright light and painful invasive procedures, and have difficulty adapting to life after birth. In recent years, perinatal mortality has decreased in developed countries due to the use of methods such as ventilator support, antenatal steroid use, and surfactant application. However, most of these surviving infants are found to have persistent neurodevelopmental problems, learning disabilities, behavioral problems, decreased motor skills, and other developmental problems (4). When the literature is examined, it is stated that individualized supportive developmental care practices accelerate the transition to breastfeeding in preterm infants, increase daily weight gain, reduce hospital stay, mechanical ventilation, and oxygen support requirements (6). In addition, it is stated that individualized supportive developmental care practices initiated early increase parental satisfaction, minimize developmental delays, reduce hospital stay, and consequently reduce hospital costs (4). In recent years, the rapid advancement of science and technology in the health field has made the need for up-to-date evidence in nursing care essential. The evidence addresses aspects of individualized supportive developmental care practices such as arranging the physical environment, massage, teaching/facilitating self-soothing, positioning the infant, kangaroo care, and providing family-centered care. The aim of this review is to provide information on evidence-based nursing approaches and studies in the field of individualized supportive developmental care practices developed for newborns.