Postural control required in daily activities and sport performances. The purpose of this study was compared postural control between teenager boys with knee varus and the control group. In this study, 20 male students aged 10-12 years were participated in two groups; the knee varus group (10 subjects with age of 11.2 ± 1.03 years, height 156.15 ± 10.29 cm, weight 39.4 ± 7.24 kg and abnormal amount of 3.37 ± 0.39 cm) and the control group (10 subjects age 11.7± 0.48 years, height 147.95 ± 7.41 cm, weight 35.75 ± 3.59 kg and abnormal amount 0.0 ± 0.0 cm). The subjects had no injury in lower limbs, head and diseases affecting the balance. Star excursion balance test and balance error scoring test was performed to assess dynamic postural control and static postural control, respectively. For statistical analysis paired sample t-test and independent t-test done with SPSS18 software. Level of confidence was set at 0.05. Results showed no significant differences in dynamic and static postural control in any comparisons between two groups. These findings indicates that knee varus deformity had no dramatic effects on postural control in teenager boys.