This study aims to determine the relationship between academic self-efficacy and resiliency of boarding-high school students in Magelang. The hypothesis of this research was that there was positive relationship between academic self-efficacy and resiliency. The subjects were ninety (90) 10th grader in X high school located in Magelang. The measuring instruments used were  Resilience Scale and Academic Self-efficacy Scale.  Simple regression analysis showed that the academic self-efficacy predict resiliency (R = 0.698; p = 0,001). Academic self-efficacy contributed an effect of 48.7% on the increase of resilience.  The conclusion was academic self-efficacy is able to predict resiliency.