On November 1-3，2017，Actor Sun Yizhou released a series of posts on his Sina Weibo account concerning air pollution in Harbin city. He accused the practice of burning crop stalk as the leading causes of the worsening local air pollution，which has aroused heated discussion on the internet. On November 4，local environmental protection authoriy of Harbin released 3 posts on the official Weibo responding to this event，with the first peak of public opinions. On November 6，the Papers，Sina Entertainment channel and other media conducted sum-up reports regarding this event，heating up the public interest once again，with the public opinions reaching its peak on November 7. The public opinions emphasized the responsibility of government in environment administration，and made constructive recommendations regarding the comprehensive utilization of crop residues. On November 8，the public opinions cooled down.