案例研究（个案研究）是社会科学研究常用的一种研究方法，被广泛地使用于社会学、政治学、心理学、政治学、教育学、应用语言学等研究领域。案例研究是一种实证研究，在不脱离现实环境的情况下研究当前正在进行的现象。随着汉语在世界上的推广，越南人的汉语学习在学习策略、学习动机、习得偏误等方面，已经有了不少研究。但是，关于越南本土汉语学习成功人士的学习特征与规律的研究尚为空白。本文以案例研究为基础理论，选择一位越南本土汉语学习成功人士作为研究对象。通过用越南语面对面录音访谈收集原始语料，进行文字转写整理，描写分析案例语言要素学习（音素、声调、词汇、语法及汉字）和语言技能练习（听力、会话、阅读、写作、翻译）两个方面的特征。我们认为，越南本土汉语学习成功人士汉语学习特征和规律是：采取积极主动的学习策略，准确理解汉语学习内容，对比总结汉语和越南语两种语言相应知识，找出对应规律。从越南语出发，由易到难进行有目的的练习。本文还根据对案例的汉语学习规律的研究，就越南汉语教学提出了具体教学建议。希望本文研究能为越南人汉语学习研究领域扩宽新的研究领域。

Case study, a common social science research method, is widely used in sociology, political science, psychology, political science, education, applied linguistics and other study areas. Case study is a kind of empirical research, studying ongoing phenomena without departing from the real environment.With the spread of Chinese language around the world, there are a lot of researches on Chinese learning strategies, learning motivation, errors and other aspects of language acquisition in Vietnam. However, there is still no study about the features and regular principles used by successful Vietnamese Chinese learner. Therefore, we decided to choose features of Vietnamese Chinese learners as the research content of case study, to start a new research direction in the research field of Chinese learning in Vietnam, to provide new reference materials for the study of features and regular principles used by Vietnamese Chinese learners, to offer helpful Chinese teaching suggestions in Vietnam. Case study is used as the theory and a successful Vietnamese Chinese learner is chose as the research subject. After face-to-face and recorded interview, the collection of materials, description and analysis of the language learning elements (including phoneme, tones, vocabulary and grammar) and language skill practice (including listening, speaking, reading and writing) would be conducted, to summarize features and regular principles of Chinese learning in Vietnam. Learning principles are compared, remembered, considered and used through knowledge, which can reflect the Chinese learning principles.