This research entitled the effectiveness of a Twitter account @IdDKP as a medium for Motion reducing the use of plastic bags in the community. Effected by the environment that increasingly damaged, due to the plastic waste and lack of public awareness to guard it. Along with this, the development of social media that have great influence in creating the relationship of a fellow human being utilized by the Diet of plastic bags to Indonesia invites the community to make changes to the environment, through a twitter account @IdDKP. Twitter has the speed in providing the information utilized by @IdDKP to raise awareness of followers toward eco-friendly lifestyle. Then from that researchers interested in knowing clearly how effective the information disseminated through twitter as a medium in increasing awareness of the followers to the environment. This research was conducted in September to March on the twitter social networking and participatory observation on twitter. This research uses descriptive research methods with the techniques of data collection through the questionnaire, the study of librarianship and interviews. This research aims to make the description or depiction in a systematic, factual and accurate regarding the effectiveness of a twitter account @IdDKP as a medium for motion reducing the use of plastic bags in the community. As for the results of this research, the @IdDKP twitter account provide information that is clear, complete and current. The message has appeal and followers feel quite satisfied and happy against twitter account @IdDKP as the media dissemination of information on the diet of a plastic bag.Dilatarbelakangi oleh lingkungan yang semakin rusak, akibat sampah plastik dan kurangnya kesadaran masyarakat untuk menjaganya. Seiring dengan hal tersebut, perkembangan media sosial yang memiliki pengaruh besar dalam menciptakan hubungan sesama manusia dimanfaatkan oleh Indonesia Diet Kantong Plastik untuk mengajak masyarakat melakukan perubahan lingkungan, melalui akun twitter @IdDKP. Twitter yang memiliki kecepatan dalam memberikan informasi dimanfaatkan pula oleh @IdDKP untuk meningkatkan kesadaran followers terhadap gaya hidup ramah lingkungan. Maka dari itulah peneliti tertarik untuk mengetahui secara jelas seberapa efektif informasi yang disebarluaskan melalui twitter sebagai media dalam meningkatkan kesadaran followers terhadap lingkungan.