This research aims to analyze the criticism if ibn khaldun's thought in four fields: the speech of ibn kaldun, the distinction theory, ibn kaldun's approach and the state theory, in order to show the logical and illogical in them and to provide response depending on contexts from ibn khaldun's heritage. The research shows that a large part of the criticism is unfair and biased as critics depended on trends un the 14th century that did not understand terminology. Criticism should take into consideration that it was written seven centuries ago and that Ibn Khaldon's writing are a witness to Arab and Islamic scientific achievements, among them the discovery of Sociology as a hew science.