Abstract
Claude Gilliot is a famous orientalist who has a lot of works on Islamic sciences, especially on commentary and history of the Qur’ân Codex. At his first and second Ph.D theses he has worked on Tabarî’s Exegesis which is called Cāmi‘ al-Bayān and later on he has studied the History of the Qur’ân Codex, Arabic Literature, Islamic history and theology, hadith and so on. But, instead of being original in his studies about Muhammed (PBUH), he completely adopted the predecessor sceptic orientalists’ thoughts and generally relied on them and repeated the same blames in many of his articles. In this article we will shortly touch on his life story and works, then we will analyze some of his thoughts about Muhammad (PBUH). And also we will shortly deal with the orientalism related to the subject matter.