This study investigates the effect of IT-business strategic alignment on organizational agility by considering the effects of IT flexibility and IT capability on strategic alignment. Also this study investigates the moderating role of environmental uncertainty on the relationship between strategic alignment and organizational agility. This research is an applied research based on purpose and descriptive-survey in terms of data collection. The statistical population consists of 330 people who work in Telecommunication Company. In this research, library method and researcher-made questionnaire were used for data collection. Its validity was confirmed by content related validity and using confirmatory factor analysis. Also Cronbach's alpha coefficient was used for its reliability. AMOS software was used to examine the relationships between the structures that formed the research hypotheses. For analyzing the moderator, Hierarchical regression analysis was used by SPSS. Finally, the results stated that IT capability and IT flexibility have a significant impact on IT-Business strategic alignment and IT-business strategic alignment has a significant impact on organizational agility, but hypothesis 4, which related to the moderating role of environmental uncertainty on the relationship between strategic alignment and organizational agility, was not confirmed.
