The result was found that self-esteem level of students who live in Akha Development Student Dormitory in Chiang Rai Province was generally in quite high level (mean = 3.11). When comparing personal factors and self-esteem of students who live in Akha Development Student Dormitory in Chiang Rai Province, the researcher found that different personal factors such as gender, age, class level, parent status and sibling order resulted in insignificantly distinct self-esteem at .05 except term of sibling number. It was found that different sibling number did not cause different self-esteem with significance level at .05.