“上头”一词入选《语言文字周报》2019年十大网络流行语，在2023年，通过搜索，“上头”一词仍然随处可见，始终保持较高的使用频率和网络热度。本文从词汇学的角度，结合一定的语料，探究“上头”一词的语义发展、语法功能和语用范围，找出在网络热词频出的今天，“上头”能在流行语中占有一席之位且保持热度的自身原因。

The word "上头" was selected as one of the top ten Internet buzzwords in 2019 by Language and Literature Weekly, and in 2023, the word "上头" can still be found everywhere by searching, and always maintains a high frequency of use and Internet heat. This paper explores the semantic development, grammatical function and pragmatic scope of the word "上头" from the lexicographic point of view, combining with a certain corpus, to find out the reasons why "上头" can occupy a place in the buzzwords and maintain its popularity in the world of Internet buzzwords.