Journalism is playing an integral role in socio-economic development. It is believed to be a particular socio-political activity which has an indirect impact on readers and even on the political apparatus of society. Only when journalists are fully aware of their roles and responsibilities will the media perform its functions properly in modern society. Through the "traditional fish sauce with arsenic" scandal, the author examines the role of Vietnamese journalism in providing information and reflecting on hot issues. At the same time, we also consider the social responsibility and professionalism of journalists today. The author studied 48 articles published in the electronic newspaper Danviet.vn from October 12, 2016 (when the scandal began) until November 21, 2016 (when the Ministry of Information and Communications announced the handling of violations for posting wrongful reports. The result of using content analysis of articles shows that this scandal attracted the attention of not only consumers and fish sauce businesses but also the authorities. Although in this affair, many journalists did not fulfill their responsibilities, in general it was found that Vietnamese journalism acts in the interests of the people, their economic, political, social and cultural needs. In the end, newspapers posting inaccurate fish sauce reports were fined, and traditional fish sauce has been vindicated.