The background of this research is the existency of extra campus organizations which have an ideology contradicting with Pancasila as the Nation Ideology and its democracy system which according to researcher it strongly threatens the integrity of NKRI. On the other side, there are many news in various media which issues the confusions between Islamic Mission becoming the spirit of Islamic students organizations and the practice of some cadres in field such as fighting among islamic students and destroying campus or public fasilities. The recrui tment curriculum of cadre is very important thing to be analyzed more deeply considering from where it will be seen the direction of this students’ movement working, the background and spirit of organizations. Therefore, the researcher focuses on something important to be analyzed especially related to the role of Islamic student organization of extra campus on the forming of students’ character of PMII and IMM cadre in UIN Sunan Kalijaga.  The selection of organization around UIN Sunan Kalijaga is chosen because of the location in Yogyakarta, in which mostly becomes a place for the establishment of student organizations and UIN Sunan Kalijaga itself has a massive organization climate. Especially thee wo organizations is the bioloical children of two of the largest Islamic organizations in Indonesia, namely NU and Muhammadiyah, which makes it a more Islamic student oranization than any other Islamic student organization.