The purpose of the study was to investigate the relationship among elementary school principals; technology leadership, teachers' teaching innovation and student academic optimism. Questionnaire survey was used to collect data. The survey objects were elementary school educators across Taiwan. This study used structural equation modeling with prospective data to test for model fit. The findings indicate that the principals' technology leadership and teachers' teaching innovation positively affects student academic optimism. Besides, principals' technology leadership will indirectly influence student academic optimism by the way of teachers' teaching innovation. The results suggest that the principals should implement principals' technology leadership to accelerate teachers' teaching innovation in order to improve student academic optimism.