Due to the continuous progress and development of new media technology, the living habits and ways of Chinese people have undergone profound changes due to the emergence and development of the Internet. Many college students are bombarded with information from the Internet, and they also gradually feel great social pressure. In addition, the Internet has become an important channel and platform for many college students to make suggestions, communicate and study. However, due to the characteristics of hidden, open and free travel of the Internet, college students can not only get access to positive and positive information, but also suffer from many unhealthy information infringements. Under the dual influence of social pressure and public opinion, college students will have a negative impact on the physical and mental development of college students. In serious cases, online mass incidents will occur, which will be detrimental to the construction of a harmonious society. Based on this, it is necessary to correctly handle the social pressure and public opinion related content of college students in the new media environment. In this paper, the connotation, characteristics and environment of new media are analyzed, combined with regression calculation, the pressure brought by new media to college students is further analyzed from four angles, and the four characteristics of college students’ public opinion are discussed in detail. Then, it puts forward the countermeasures of social pressure and public opinion from five dimensions.