This study investigated the relationship between social supports and the self-evaluation of school-aged children. The Social Supports Scale is composed of three factors : social supports from family, friends and teachers. The subjects were 397 school-aged children. The main results were as follows. First, the level of social supports was generally high, with the highest level being from family. Second, the level of self-evaluation was also generally high. Finally, all supports from family, friends and teacher had positive influences on self-evaluation. The most influential factor was social support from friends. The implications of these results were discussed.