We want to know about the factor of decision making when student choosing university. What is the factor attract or interested in university. Including a bad result when they came to study at university. What should be adjusted the reference for developing and making the university is interesting to convince other more students to admission to study in Mahasarakham University and makes to know what the university should develop for increase more university’s standard. Sometime, the factors that affect decision making is not only the students but also parents. We should be known about all the cause that why the student doesn’t choose study in Mahasarakham University.