As requested by the central inspectorate for environment protection，local authority of Huzhou in Zhejiang province dug out a number of dead pigs buried in Dayin Mountain on August 30，2017. This event immediately aroused public attention on September 10 after media report. Huzhou Municipal Government consecutively released circulars on this event and launched follow-up investigations. The investigations found out that “the dead pigs were buried in 2013”，and that “villagers’ reports for years were futile”，among others，which gave rise to hot public debate. Meanwhile，failure in fulfilling supervisory duties on environment protection and bio-safe disposal aroused reflection. Huzhou initiated related accountability procedure on September 11，and the public opinions reached its peak. On September 12，public opinions started to cool down.