The advent of the micro-era has led to obvious changes in the mode of communication, and brought brand-new opportunities for the ideal and belief education of student communists, which promotes the development of their education. The promotion of the ideal and belief education of student communists not only can promote the comprehensive quality level of communists and optimize the existing ideas, but also can explore new development directions and create a high-quality development atmosphere. Under the background of the micro-era, to further strengthen the ideal and belief education of student communists is not only an inevitable demand for cultivating socialist successors, but also an important embodiment of following the development of the times and fully demonstrating the exemplary and leading role of college student communists. With the increasing complexity of the international environment, it is necessary to further strengthen the idea and belief education of student communists through rational methods. College students are the future of the country and the hope of the nation, as well as the key to realize the Chinese dream of the great renewal of the Chinese nation. Therefore, we must attach great importance to the ideal and belief education of student communists and help them establish firm and correct political positions, ideals and beliefs, and make them study hard and strive hard. So as to promote them to become an excellent socialist builder and successor, and ensure that the Communist Party always remains youthful and energetic. This article starts with the new opportunities for the ideal and belief education of student communists under the background of the micro-era, explores its existing difficulties and challenges, and proposes suggested countermeasures based on this for reference.