The Intemet has already become an essential part of college life as well as the source of information in college students＇ daily life. In the world today, it plays an increasingly important role in the study and life of college students. In this paper, the author analyses the current situation of college students＇ ideological and political education under the lnternet environment and negative effects of the Internet on college students, and then proposes methods and countermeasures to strengthen and improve the ideological and political education under the Intemet environment.