PURPOSE: The purpose of this study was to evaluate the effectiveness of sensory stimulation therapy on the physical growth and behaviors of infants accommodated at two Korean orphanages. METHOD: Thirty-eight full term infants were assigned to a control (n=20) or an experimental (n=18) group within 14 days of birth. In addition to routine orphanage care, infants in the experimental group received 15 minutes of massage twice a day, 5 days a week for 4 weeks. RESULT: Compared to the control group, the experimental group had gained significantly more weight and had larger increases in length and head circumference after the 4-week intervention period. In addition, the experimental group showed significantly better behavioral performance in the scoring of habituation (e.g., light), motor (e.g., motor maturity), and state range (e.g., peak of excitement, rapidity of build-up) behavioral clusters of Brazelton's NBAS. CONCLUSION: These data demonstrate that sensory stimulation therapy may facilitate the physical and behavioral development of the newborn infants placed in the orphanages.