随着生成式AI的普及，社交媒体融入大众日常网络生活，“活人感”逐渐成为近几年全网流传度极高的网络评价类热词。本文以词汇学、语法学、语用学与社会语言学的基础理论为支撑，层层拆解“活人感”的构词逻辑，梳理它从小众到全网通用的语义演变过程，总结它灵活多变的语法用法，划分日常网络场景中的使用规律，深挖这个词汇背后折射的大众社会心理与时代文化特征。研究发现，“活人感”依托汉语经典的名词后缀构词模式成型且在口语场景中用法十分灵活，展现出现代汉语会随社会发展自主调整、动态适配的特性。

As generative AI becomes more widespread,social media has become an integral part of everyday online life. The concept of “vitality” has gradually emerged as a highly popular online evaluation term across the entire network in recent years.This paper is supported by the basic theories of vocabulary,grammar,semantics and social lingistics.Step by step,we deconstruct the semantic evolution of “living sense”,comb through its semantic evolution from niche to ubiquitous use,summarize its flexible and variable grammatical usage,delineate the usage patterns in everyday online scenarios,and dig deep into the popular psychosocial and cultural characteristics behind this term.The study found that the “living sense”relies on the classic Chinese noun suffix construction pattern and is very flexible in spoken scenes,demonstrating the characteristics that modern Chinese will independently adjust and dynamically adapt with social development.