Numerous  Islamic  groups  in  Indonesia  use  the  internet  to  offer  ideology  against  other  groups  or other sects to internet users. This study focuses on sectarian ideology on Islamic online media in Indonesia. Having combined and sought this media, I found that lppimakassar.com and manhajsala- fi.com  are  the  most  intensive  sites  in  offering  sectarian  ideology.  This