The “Agenda-Setting” Theory needs to be re-examined in the digital age. Combining the interview with Professor Donald Shaw and recent research findings, the power of vertical media gradually shifted to horizontal media. Social media draw background content from traditional media when stressing issues, andthe ‘Agenda-Setting’ Theory is absorbing all the media. Traditional media provide issues objects as the first layer of the agenda-setting, while social media providing attributes as the second layer. They may both reach a consensus on the topic, but there may be disagreements on the attributes. ‘Agenda melding’ theory melds themes and attributes. In the Reverse agenda-setting, news reporter respond to actual or imagined public interest, and the public agenda was concerned with social media to get empowerment. Agenda-setting can be used to measure social stability. The consensus coefficient between traditional media and social media can be used as reference, while ‘Needfor Orientation’ theory still appliesin social media.