Abstract: This paper is a report on the findings of a study conducted at graduate level during July-September, 2011. Participants were international students from America, Europe, Asia, Thailand, etc. at the Graduate School of Education, Assumption University; both those who graduated from 2009 -2011 and those current students whose proposal and final defense were accepted. Descriptive statistics and Pearson Correlation were used to examine the relationship between advisor’s behavior and student satisfaction. Findings indicate that out of the five behaviors (Encourage, Proactive, Respectful, Approachable, Personal Touch) of advisors, four of those have significant (p-value<0.01) positive correlation with student satisfaction, ranked from highest to lowest, Encourage, Proactive, Personal Touch and Respectful. Being approachable does not have a statistically significant positive correlation with student satisfaction.