This report divides disseminators of online commentary into three categories，which is the media gatekeepers，institutions and self-media，according to the standards of professional degree，team size and sustainability of commentary. After evaluating disseminators' active degree of online commentary in 2017，the research found that the top four monthly lists of online commentary were the professional news website which represented by the People's Daily Online，the Xinhua net and the CNTV，and the agency news website which represented by the China.com.cn. Different disseminators showed relatively different style characteristics in terms of topic selection，position expression，discourse characteristics，and audience relations. In the future，disseminators of online commentary need to be further based on the dissemination of the mainstream values，to promote social positive energy，to lead the socialist values，and to follow the rule of network communication，to pay attention to the needs and experience of the netizens，to expand the ways of communication and to enrich the means of communication.