摘要:This study aimed to investigate the relationship between transformational leadershipand teachers performance improvement in Ahwaz education of regain one boy high schools.This research is descriptive-correlation. The statistical population of research consisted of 148 boy high schools employees, that 108 out of them were selected in stage cluster random sampling method and in basis of Krejcie and Morgan table. In order to collect data, we use Karry Barent transformational questionnaire for leadership and schools yearly performance table for Performance improvement evaluate. For analyzing data, the Smirnov and Kolmogrov test and Pearson correlation test are used. The finding result showed that there was a positive relationship between transformational leadership and teachers performance improvement. The results shows that in order to improve teachers performance by transformational leadership approach, managers should be as role model for teachers, set clear vision for them, help them for questioning the existent situation and consider them individually.