This study analyses the use of assertive illocutionary acts in TikTok news produced by Liputan 6 SCTV and explores the news construction strategies within this short video format. In the current digital era, social media platforms such as TikTok play an increasingly important role in information dissemination, particularly among younger and more dynamic audiences. Assertive illocutionary acts, which function to convey information with firmness and confidence, are effectively used in TikTok news to ensure that the messages communicated are clear and unambiguous. This research employs a qualitative approach, using data collection techniques including observation and content analysis, as well as interviews with relevant journalists. The findings reveal that Liputan 6 SCTV utilises engaging visual elements and concise narratives to deliver news effectively within the constraints of short video formats. While this strategy enhances audience engagement, it also presents challenges related to the limited space for in-depth explanation. Comparisons with previous studies indicate that although the approach on TikTok aligns with modern communication trends, there are significant differences in news delivery techniques compared to other platforms such as YouTube or Instagram. This research contributes to illocutionary theory and social media studies by providing insights into the adaptation of language and news format within the dynamic context of social media. Recommendations for future research include exploring the use of illocutionary acts on other platforms and applying mixed-methods approaches to gain a more comprehensive understanding.