Online chatting is a special form of verbal conversation which is different from face-to-face oral communication in real life. In the oral communication of real life, netizens can use a series of peripheral language features such as tone, facial expression, gesture, voice, and tone change to communicate with each other to achieve good communicative effects; but in the process of WeChat chat, netizens can only communicate by entering a sequence of words, such a chat lacks the necessary "physical context." At this point, the Emoji Emotion plays an important role, it just plays the role of "physical context" to assist the text sequence to communicate. This paper takes 20-29 years old college students as the research object. Through collecting and sorting WeChat chat records, analyzing the questionnaire data and combining interviews, the linguistic empirical research on WeChat Emoji Emotion in specific network communication is carried out. This paper finds the linguistic functions of WeChat Emoji Emotion in terms of vocabulary, grammar and pragmatics, and at the same time clarifies its role in the three-dimensional analysis of linguistics. In terms of vocabulary, WeChat Emoji Emotion can be substituted for words for meaning, and it's ambiguous, and the specific context limits the meaning of WeChat Emoji Emotion, In terms of grammar, WeChat Emoji Emotion can be used as real and virtual words in sentences, and it can be served as syntactic components and it can be pluralized. In terms of pragmatics, WeChat Emoji Emotion can create contexts and create a communicative atmosphere; It also can convey the emotions of both sides of the communication and express emotions. WeChat Emoji Emotion plays the role of "physical context" in the three-dimensional analysis of linguistics. It has two main functions: one is to assist the language to communicate in order to make the sentence more clear; the other is that it appears in a dialogue that may hurt the face, making the sentence more implicit and euphemistic. Key words: WeChat Emoji Emotion; network communication; vocabulary, grammar, pragmatics

網絡聊天是一种特殊的言語會話形式，它與現實生活中面對面的口語交流是不同的。在現實生活的口語交際中，交際雙方可以運用語氣、面部表情、手勢、語音、語調的變化等一系列邊緣性語言特徵輔助語言進行交流達到良好的交際效果；但是在微信聊天的過程中，交際者們只能通過输入文字序列來進行交流，這樣的聊天缺乏必要的“物理語境”。此時 Emoji表情符號就起到了重要的作用，它恰好扮演了“物理語境”的角色來辅助文字序列進行交流。 本文以 20-29 歲的高校大學生作為研究對象，通過收集與整理微信聊天記錄，分析問卷數據並結合訪談，對具體網絡交際中的微信 Emoji 表情符號進行了語言學的實證探究。本文探討了微信 Emoji 表情符號在詞彙、語法、語用三個方面的語言學功能，並且通過語言學三維分析明確了 Emoji 表情符號扮演的角色和發揮的重要作用。在詞彙方面，微信 Emoji 表情符號能夠替代詞語進行表義，具有多義性，具體的語境會限制微信 Emoji 表情符號的意義；在語法方面，微信 Emoji表情符號可以在句子中做實詞和虚詞，可以充當句法成分，能夠複数化；在語用方面，微信 Emoji 表情符號能夠創造語境，營造交際氛園；能夠傳遞交際雙方的情緒、表達情感。筆者通過語言學三維分析發現微信 Emoji 表情符號扮演了“物理語境”的角色，發揮的重要作用主要有兩個：一是輔助語言進行交際，使句義更加明確；二是出現在可能會傷及對方面子的對話中，使句義更加含蓄委婉。 關鍵詞：微信 Emoji 表情符號；網絡交際；詞彙；語法；語用