This study takes the object of an Indonesian popular Islamic religious film in 2015, Surga Yang Tak Dirindukan (SYTD). This study aims to determine polygamy discourse portrayed in the SYTD’s movie and also to find out the purpose of the filmmaker that representing polygamy discourse on religious film. This study is a qualitative research with a critical discourse analysis techniques model of Norman Fairclough. The results of the study at the level of the texts shows that the discourse of polygamy can be represented through the choice of words and religious diction in representing the Islamic character in the film. Through the texts, it can be represented through the identity formed in positioning polygami actors. In the dimensions of practical discourse, the filmmaker was construing the polygamy as an effort in the information and achievement of a more Islamic character, such as the attainment of piety through sincerity and patience, as well as construed the individual’s role and character which lead to polygamy and the opportuniyu to preserve it. At the level of socio-cultural shows, polygamy is still repeating a lot of adultery, and so forth. The conclusion are film maker represent the polyagmy as a threat and criticism of those who want to achieve the better predicate in piety, also for those (man) who have a very kind heart, and those (women) that too idealistic in defining the role of woman in household. The good characters, manners, and religious could not guaranteed of monogamous family. But with the characters and embellishments of religious things that built in this film, are just to estrange the ideology of the filmmaker himself to dominate the Indonesian film industry.