改革开放初期，粤语流行语作为经济转型与文化重构的产物，成为观察国家认同建构的独特窗口。本文以语言学与文化符号学为理论框架，通过分析《啼笑因缘》电视剧主题曲传播、广州音乐茶座文化、“头啖汤”“搞掂”等词汇的流变等典型案例，揭示粤语流行语如何通过三重机制参与国家认同建构。

In the early period of China’s Reform and Opening-up, Cantonese popular expressions, as products of economic transformation and cultural reconstruction, became a unique lens for examining the construction of national identity. This study adopts a linguistic and cultural semiotic framework and analyzes representative cases, including the dissemination of the theme song of the TV series Tidiao Yinyuan , Guangzhou’s music teahouse culture, and the evolution of expressions such as “tóu dān tāng” and “gáau dim” , to reveal how Cantonese popular expressions participate in the construction of national identity through three intertwined mechanisms.