The purpose of this paper is to study why Iraq has not achieved democratic consolidation. Studies are interesting from a statistical scientific point of view again, many researchers are involved in how the process of democratization works and why countries are stuck at different stages. The overall question on which my study is based is: Why has Iraq not achieved democratic consolidation? Another issue that is in the essay is in what phase Iraq is in Rustow's theory? My approach to answering my questions has been to study Dankwart Rustow's democratization theory. His theory is based on the fact that democracy can be created on the basis of four different phases: unity phase, resolution phase, transition phase and consolidation phase. The essay concludes that Iraq is in the transition phase and has not been able to achieve democratic consolidation. The underlying causes have been religious, political and ethnic factors.