This article aims to examine the psychological difficulties faced by psychology students at Hanoi Capital University during their internship. The study employs a mixed-methods approach with 50 students participating in quantitative surveys and 12 students in semi-structured interviews. The results indicate main challenges including: lack of self-confidence in applying knowledge, role conflicts during practice, insufficient support from supervisors, and prolonged stress symptoms. Quantitative analysis using Cronbach’s Alpha, Pearson correlation, and Exploratory Factor Analysis (EFA) shows that the measurement scale has reliability and validity. Qualitative analysis provides deeper insights into the real psychological experiences of students, from which recommendations are made to improve training programs, enhance internship support, and develop an effective professional supervision system. The study contributes practical evidence for ensuring mental health and improving the quality of training for psychology students.