Learning motivation is a factor that directly affects the progress and learning outcomes of students. Students with high academic motivation often achieve good academic results and vice versa. Students' learning motivation is affected by many different factors, including mental health problems. The article presents research results on mental health and learning motivation of psychology students, Van Lang University. Research results on a sample of 164 first-year to fourth-year students indicated that psychology students currently have mental health problems, the rate of students experiencing stress is 81.1%, anxiety is 72.6% and depression is 59.8%; Students' learning motivation is only at a good average level. Mental health problems were positively correlated with learning motivation and could explain 9.3% of the variation in student motivation. These results showed that schools, lecturers, etc. need to care and support students to solve mental health problems, contributing to enhance their learning motivation.