The purpose of this study were to describe the performance 67 kindergartener who aged from 4 to 7 years on the Pediatric Clinical Test of Sensory Interaction for Balance(P-CTSIB) and to determine difference with foot position and age. All subjects were performance with different foot position that were feet-together, heel-toes. the starting position was that subject placed their hands on the hips. The results of this study were as follows 1. There were significiant difference in all instances by age when subjects were foot together(p$lt;0.05). 2. There were significiant difference in all instances by age excepts condition V when subjects were heel toes(p$lt;0.05). 3. Duration of balance performance of 4-year-olds were shortest and duration of balance performance of 7 year-olds were longest.