Islam obliges every female Muslim to wear hijab, including those who live in Indonesia. Although Indonesia is not an Islamic country, most of its population are Muslims. Islamic fashion has recently been a trend, and thus influences the definition of female Muslim’s fashion. Which was previously done for covering up aurat (intimate body parts according to Islam), it has now become more revealing by showing body curve. More than that, as there are more varied styles of hijab-wearing, there are also more that are not relevant to the original Islamic teachings. Hijab wearing is supposed to influence the conduct and morals of the one wearing it. The research aims to identify the influence of hijab toward the behavior and ethic of female students of Islamic Education Department Universitas Muhammadiyah Yogyakarta. Thus, the research was qualitative research which was based on field research. Data were compiled through observations, direct interviews, and documentation. The method used by the researcher after the data were compiled was Miles and Huberman method. The result shows that female students are still interacting in a normal manner and are not violating any religious values. Whereas, some female students who are wearing regular and sharia hijab when interacting are well aware of protecting their aurat and drawing boundary with the opposite sex friends who are not their mahram. Moreover, their utterance is also very wellmannered. Besides, the female students' moral and ethic are not really influenced by their hijabwearing style because one’s morality is also shaped by family, social environment, and friends. Therefore, whether wearing sharia hijab or regular hijab, one’s ethic depends on individual characteristics. The surrounding environment, such as home and campus, is highly influential toward the good or the bad of one particular individual’s interaction.