While ESP materials have played an increasingly important role at Vietnamese universities, the process of ESP material design and evaluation has not become any easier for most teachers and administrators. This thesis describes the evaluation that was undertaken at Hai Phong Medical University for its ESP material “English in Medicine” which has been used for the third-year students since 1996. The purpose of this study was to evaluate the material English in Medicine in terms of Objectives, Layout, Content and Methodology from both students’ and teachers’ perspectives. The thesis employed the survey approach with two research methods, i.e. survey questionnaire and informal interview. The survey results indicated that English in Medicinehad such great strengths as it met the course objectives; its subject areas covered interesting and fundamental topics which were of students’ interest. However, the findings also revealed a lot of weaknesses of the material. In terms of Objectives, it failed to meet students’ needs due to the lack of listening and speaking skills. With regard to Layout, it not only had an unfavourable format but also lacked a table of content, references Its Methodology was another weakness of the material due to an unbalance of theskills and inadequacy of exercises and activities. After identifying strengths and weaknesses of the material, the thesis suggests some improvements of the material basing on the findings of the research, such as reediting the format, adding listening and speaking skills, providing more exercises, adapting the activities These improvements are expected to make consideration contributions to the future use of the material as well as the ESP course at Hai Phong Medical University.