Online Social Network (OSN) is an ineluctable powerful, most popular interactive medium to exhibit views, share, communicate and dissipate a considerable amount of human life information’s among the internet user. The main issue in Online Social Networks is the users have less control over the filtering technique to avoid unwanted messages or text that posted on their walls. This paper presents an overview comprehensive review of Information Filtering on various techniques proposes a system enforcing Content Based Text Filtering concessive as a key service for online social network to block user’s vulgar content or abuse words.