With the development of Internet technology, "net red" is developing vigorously, and its influence scope is increasing day by day. As an important follower and supporter of "Internet red", college students' ideology and behaviors approach to "net red". Meanwhile, many aspects of Ideological and political education of college students are also affected by "net red". Through a lot of investigations, we conclude that "net red" has influence on Ideological and political education of college students in positive and negative aspects. Its positive effects are to improve the richness of education content, to promote the flexibility of education mode, to help the modernity of education carrier and to increase the multidimensional nature of education environment. Its negative effects included that eliminate the bad effect of Ideological and political education, pollute the environment of ideological and political education and weaken the effect of Ideological and political education.