Abstract: News consumption is critical to human’s mental health In addition, bad news has more impact than good news. In general, humans consume more bad news than good news. Bad news is usually distributed faster than good news. Consumption of bad news could have long-lasting negative effects on human’s well being, Bad news could lead to anxiety, stress, and depression. The research aims to provide a filtering guideline to differentiate good news and bad news. The research employs AI for Thai, an NLP tool, to do word segmentation and sentiment analysis. The filtering system distinguishes good and bad news from good and bad sentiment. The data are collected from covid-19 news posts of the three main Thai news Facebook pages; Thairath – 17 millions followers, เรื่องเล่าเช้านี้ – 16 millions followers, and ข่าวเวิร์คพอยท์ 23 – 2.3 millions followers during 2020-2022. Based on covid-19 topics, the results shown that one media Facebook channel tends to be more positive, while another two is more negative, and neutral