The college students are increasingly becoming the important users of Micro Blog. They concern diversified fields on Micro Blog and follow specific people or institutions in common. They make the speed of information transmission on Micro Blog even much faster than other users do. The information on Micro Blog has made a great impact on the value judgment, value choice and value goal of the college students. Today the dilemma in college students’ belief does exist objectively, and Micro Blog has both negative and positive effects on it, especially the positive effect on enhancing timeliness of belief education and judging ability to the complicated society phenomenon. Information age asks the educators to keep pace with the times, look on Micro Blog correctly and use it to perfect the belief education of college.