在互联网与全球化双重背景下，网络中英混合语码成为Z世代主流线上交际方式。现有研究存在线上线下语料混淆、价值分析片面、辩证探讨不足等问题。本文运用文献、语料与辩证分析法，界定网络中英混合语码概念，划分五类混合形式，并从词汇、句法、语用、媒介符号归纳其语言特征。研究发现，该现象兼具多元文化价值：促进中西双向文化交融，构建青年亚文化身份体系，丰富汉语词汇与表达形式，舒缓网民情绪、调和网络矛盾。同时学界存在“语言污染”与语言自然发展两种对立观点，无序混用带来语体混乱、汉字内涵弱化、青少年书面语失范、圈层沟通壁垒等弊端。对此，本文从语言管理、平台管控、分层教育、大众认知层面提出差异化规范路径。研究指出，网络中英混合语码是语言发展的必然产物，需秉持辩证视角，分场景包容引导，兼顾汉语文化传承与网络语言创新活力。

Against the backdrop of the Internet and globalization, mixed Chinese-English code has become the mainstream online communication method for Generation Z. Existing research faces issues such as confusion between online and offline corpora, one-sided value analysis, and insufficient dialectical exploration. This paper employs literature review, corpus analysis, and dialectical methods to define the concept of mixed Chinese-English code online, categorise five forms of mixing, and summarise its linguistic features from the perspectives of vocabulary, syntax, pragmatics, and media symbols. The study finds that this phenomenon embodies multiple cultural values: it promotes bilateral cultural integration between China and the West, constructs a youth subcultural identity system, enriches Chinese vocabulary and expression forms, and alleviates netizens' emotions while reconciling online conflicts. At the same time, the academic community holds two opposing views: "language pollution" and natural language development, with drawbacks including stylistic confusion, weakening of Chinese character connotations, normative issues in adolescents' written language, and communication barriers among different groups. In response, this paper proposes differentiated regulatory approaches from the perspectives of language management, platform control, tiered education, and public awareness. The study indicates that mixed Chinese-English code online is an inevitable product of language development, requiring a dialectical perspective, scenario-specific inclusive guidance, and a balance between the inheritance of Chinese culture and the innovative vitality of online language.