Pronunciation is an essential skill that significantly affects the effectiveness of foreign language learning. However, the reality shows that incorrect pronunciation is still a big obstacle for Vietnamese students in general and students of the University of Transport and Communications, HCM city campus, in particular, in the process of learning English. Many students feel embarrassed when speaking English and have difficulty listening comprehension because of incorrect pronunciation. This article presents the research results on pronunciation errors of 100 non-language majored students at University and college at the University of Transport, HCM campus, analyzes the causes, and offers solutions to overcome the problem.