Year before there is a movie called "Downfall" depicting the last twelve days of Hitler. The part of this movie is adapted by users into another short like "Hitler's XBOX360 has been locked" and "Hitler's solidarity with the Chinese Taipei team-rescue Yang Shu-Jun!". Another example is the American artist Thomas Forsythe created 78 photographs named "Food Chain Barbie" in 1997. The photo series presented Barbie with many ridiculous and sexual positions, such as "Malted Barbie" in which nude Barbie was placed in malt machine; "Fondue a la Barbie" in which three Barbie heads were placed in the cheese pot. With these photos Thomas Forsythe criticized that the Barbie doll materialized women and treat women as goods. He also denounced that the Barbie doll shape the popular myth of the beauty. These behaviors called "parody" created the new works based on the others in the way of changing part of the original content. According to the Copyright Law, the parody is not only involved copyright and also moral right such as the right of attribution and right of integrity. With the fair use doctrine the parody may not infringe copyright, but due to lack of similar provisions for moral right the parody will not be exempt from infringement. However, the first paragraph of Copyright Law stipulates that its purpose is to protect the interests of authors' works, to reconcile social and public interests and to promote the development of national culture. Furthermore the article 11 of our Constitution guarantees freedom of expression. Therefore, this paper intends to research the conflict between freedom of expression and copyright protection, and try to find a solution.