In the realm of human rights, the right to freedom of expression is the most important right of freedom, and in some way, is the mother of human rights and artistic expression is considered of its kind. Artistic works, besides a form with taste and function of promotion and satisfaction of spiritual needs of human are different media and containing idea, message and form of thought of the creator, and among this, censorship is a process for disturbing in sending the thought of the artist. The censorship is slipping concept and has high interpretation tolerance that its theoretical foundations have been analyzed in this article, with a look at its Iranian type in terms of the status, reasons, efficiency, types and effects, and the result in brief, indicates that: 1-freedom of expression and naturally the right to freedom of artistic expression, the principle and censorship are exception, and the number of examples or its broad interpretation is prohibited,2. The government does not have the competence to censorship, this is the responsibility for civil society, and the government must, of course, protect artists of cinema from society censorship,3. Due to the advent of modern technologies and its communication tools, the censorship if even it is desirable, it is not possible,4. The governmental censorship whether legal or illegal, would ultimately limit artistic rights, undermine the clarity and increase metaphor of the language of art and will follow by self-censorship.