The present study explored the relationships between friendship and drive for thinness, self-esteem, and health consciousness. The participants were 72 male university students (average age 20.03 years old, average BMI 21.04 (SD= 2.39) ), and 121 female university students (average age 19.97 (SD= 0.84), average BMI 20.72 (SD= 0.84)). Participants completed a questionnaire assessing drive for thinness, conformity to informal group, degree of satisfaction with friends, tendency toward uniformity in friendship groups, self-esteem, subjective health and dieting behavior. Correlation analysis indicated that the significant correlation between drive for thinness and conformity to informal group in female. ANOVA indicated significant difference between average BMI and average point of drive for thinness. Additionally, there were some differences in female students' friendship styles. These results suggested that there is a possibility of existence of friendship style in female's drive for thinness.