The aim of this study was to compare the effect of music therapy and Swaddling on pain is caused by venous blood sampling in premature babies. This clinical trial on 51 premature an infant hospitalized in neonatal intensive care medical center will Bushehr Persian Gulf. Inclusion criteria included: Written take informed consent from parents, Gestational age less than 37 weeks, After at least 24 hours of birth, Exclusion criteria: Congenital abnormalities, Chromosomal or neurologic, Babies who have Undergone surgery, Babies who are connected to ventilator.Infants randomly were divided into three groups of 17 subjects in each block ; Music group a, The Swaddling group b and group c was considered as control; From 5 minutes before blood sampling, Blood samples collected during and 5 minutes after music player in group a and group b 5 minutes before and 5 minutes after blood sampling, The Baby wrapped in a thin sheet. In all three groups the heart rate and arterial oxygen saturation before, During and after the blood sample is measured and will be recorded.The baby's face in close-up shooting can be seen, a film made by a research assistant unaware of the type of intervention , Then questionnaire of premature infant pain profile is completed by a research assistant. To measure physiological parameters, a pulse oximetry is connected to baby is used.