Abstract: Based on media discourse, this paper analyzes the interaction between new media discourse strategies and national identity construction in the dissemination of large-scale sports events. The study finds that the construction of media discourse is mainly divided into strategic dimension, tactical dimension and operational dimension. From the macro level, the strategic dimension shows that the media persuades to construct identity through discourse, cultivates emotional identity through discourse narrative, promotes collective action and strengthens collective identity through public speech; the tactical dimension is mainly based on text features such as double coding, multi-level communication, text interaction of new media and discourse style to reflect the discourse ideas and methods of new media construction national identity in the communication of large-scale sports events from the middle level; the operational dimension is mainly the specific discourse construction behavior at the micro level, including network expression packs, new media topics, new media Duanzi and network popular words. These three dimensions together constitute a discourse system for the construction of national identity by new media in the dissemination of large-scale sports events, which has led to a positive interaction between new media discourse and national identity construction.

Key words: national identity, new media communication, discourse strategy, major sports events