Purpose of this study was to compare happiness in orphanage and non-orphanage children. Research method was descriptive study. In so doing, through cluster sampling 74 orphanage and non-orphanage children selected. Measurement devise was The Memorial University of Newfoundland Scale of Happiness (MUNSH). Data analyzed by dependent t test and Pearson's correlation coefficient. Results showed that there is a significant difference between orphanage and non-orphanage children in positive and negative emotions. Orphanage children show more negative emotions (NA and NE) and less positive emotions (PA and PE) in comparison with non-orphanage children. There is no significant correlation between age, education and happiness.