<p>Previous studies have found that there is a correlation between mainstream media news reports and social media posts in the Israeli-Palestinian conflict, but there is a lack of explanation from the perspective of third-party countries. This study aims to explore the differences in public opinion between mainstream Chinese media and Weibo in the Israeli-Palestinian conflict. Using war journalism and peace journalism as theoretical frameworks, and employing BERT machine learning methods, we conducted content analysis of mainstream Chinese media and Weibo, as well as time-series latent Dirichlet allocation (LDA) topic analysis. The research results show that the public opinion fields of mainstream media and Weibo in China are similar in terms of subject matter, including relevant discourse on war and peace news. Moreover, the number of articles and posts in mainstream Chinese media and Weibo shows a positive correlation trend over time. At last, during the Israeli-Palestinian conflict, Weibo adopted a narrative framework dominated by war journalism, and the proportion of topics related to peace journalism gradually increased and gradually equalized with the proportion of topics related to war journalism in the later stages of the conflict. However, the proportion of topics related to war and peace journalism in mainstream Chinese media during the Israeli-Palestinian conflict remained relatively balanced. Therefore, the research conclusion of this article is that during the Israeli-Palestinian conflict, there is a correlation between the content of mainstream media and Weibo in China. The mainstream media has achieved a balanced narrative of war and peace news in their reporting, maintaining the objectivity of news. The discussion on Weibo initially focused on war and conflict, but later evolved into topics related to peace news, which also reflects the shift in the focus of Chinese netizens on international conflicts.</p>