Network space is a new carrier of social public opinion. It has internal generating logic, which can not only be separated from the public subject’s emotional attitude, values and vital interests, but also the media subject’s report processing, information presentation and dissemination. It is inseparable not only from the background of domestic social contradictions, international struggle situation and information selection trend, but also from the era conditions of media, Internet and big data. It is inseparable from the reality behind social events, and also from the realistic challenges faced by the guidance of network public opinion. The guidance of network public opinion in the new era must control the subjectivity, keep up with the times, base on the reality, and promote the internal unity of subjectivity, times and reality.