in this article, the course of encounter with the category of freedom followed by muslim thinkers, is dealt with, and then the viewpoint of martyr mutahari on the concept of freedom; negative and positive freedom; freedom and god - consciousness; freedom as being means or end; freedom of thinking and freedom of opinion and their differences; syncretism of beliefs with human perfection; strife against false beliefs; jihad (holy war) and freedom of opinion and freedom of speech and pen, are surveye d through the use of the quranic verses.