The present study explored the validity and the discriminability of the College Maladjustment scale in Korean college students. The College Maladjustment scale was administered to 334 college students. The mean of the scale was 13.45 (SD=6.68), and there was no significant difference between male and female students. The validity of the College Maladjustment scale was investigated by the factor analysis, yielding 4 factors of "loss of self-confidence", "health condition", "concentration difficulty", and "anti-social tendency". There was also a significant correlation between the College Maladjustment scale and the BDI. These results indicate that the College Maladjustment scale measures various aspects of maladjustment in college students. And, the College Maladjustment scale score of the counseled group (maladjusted students who had remained in counseling for three or more sessions) was significantly higher than the score of the normal group (adjusted, noncounseled students). Discriminant analysis also showed that the College Maladjustment Scale reliably distinguished between the counseled group and the normal group. We believe that as a valid test of college students' maladjustment, the 31-item College Maladjustment Scale can be conveniently used for testing a large number of students in a relatively short period of time.