The purpose of this study is to investigate the effect of kangaroo mother care on the fatigue of mothers with a premature infant hospitalized in NICU in Kerman Afzalipour Hospital. Participants in this clinical trial will be 100 primiparous mothers. Mothers will be 20-35 years old, have preterm infants with the gestational age of 28 –34 weeks hospitalized in NICU. The participants will randomly be divided into experimental and control groups. In each group, 50 couples of mothers and infants participate. In the experimental group, participants will complete the visual analog scale before starting kangaroo mother care and then will do it for 60 minutes. Intervention will be done twice a day in late morning and evening shifts, as the ward is less crowded, for one week. Intervention will be done twice a day in late morning and evening shifts, as the ward is less crowded, for one week. Then, at the end of a week, the visual analog scale is completed again. The control group participants will receive routine cares. They will complete the visual analog scale at the beginning of the study and at the end of it. Data-collection will be done using visual analog scale (VAS-F) and demographic questionnaire. Descriptive and inferential statistics will be used to analyze the data; then, the data will be compared in 2 stages, pretest (before intervention) and post test (after intervention), to evaluate the impact of kangaroo care on fatigue.