Purpose: The purpose was to test the effects of a premarital education program for singles on their sex role attitude and marriage expectations. Method: Forty seven single people were recruited through website advertisements. Volunteers were randomly assigned either to participate in a 4 week premarital education program(2 hours per week)(n=23) or the option to get a hand-out used with the experimental group after a post-test(n=24). An interviewer blinded to the randomization collected questionnaire data from all subjects at pre and post test. The program covered 2 thematic areas: the value of marriage and gender equity-relations. The data was analyzed using $X^2$-test, t-test, and ANCOVA. Result: There was a significant difference in the marriage-expectation score between the two groups. However, the sex role attitudes score in the experimental group was not significantly different from that of the control group. Conclusion: This premarital education program for singles had positive effects on marriage expectations but not on sex role attitude. Longer follow-up might be needed to evaluate these effects.