Vietnam has been sending a lot of people overseas for study and training but the results obtained from overseas study and training are not satisfactory owing to language deficiency. This has prompted the present study which aims to investigate the language problems and language needs of Vietnamese going overseas for study and training. Chapter 1 presents the justification and objectives of this Study Project Report. Chapter 2 gives some insight into the definition of English for Specific Purposes (ESP), its development, and the situation of English language teaching and ESP teaching in Vietnam. Chapter 3 discusses the nature of analysis and its role in ESP course design, types of needs of learners of English, and the methods of collecting information for needs analysis. Chapter 4 examines the noticeable problems of Vietnamese learners of English in overseas settings in terms of difficulties in language, study skills, and cultural differences by carrying out through a survey and a case study. Chapter 5 specifies three kinds of English that Vietnamese in general will needs for study and training in overseas settings: English for survival needs, English for social needs, and English for descipline-specific needs. Finally, some conclusions and recommendations are presented in the last chapter.