A questionnaire concerning attituaes toward dating and mate selection has been given to 321 students at National Taiwan Normal University. Results show that majority of the subjects approve the going- steady relationship between boys and girls while at the same time, recognize its negative effects on their academic work. Most of the young people agree that the more friends of opposite sex one has, the greater the opportunity that one would understand them. However, they feel that kissing and exchange of valuable gifts should be limited to those who are deeply in love. Nearly 80% of the subjects disapprove pre-marital sex behaviour and 90% of them show negative attitude against extra-marital sex relations. 　　In regard to mate selection, a girl student prefers to have a partner who is 3-5 years older than she is, with educational and economic background better than her own. A male student tends to have opposite preferences. In general, boys have more "open" and less restrictive atitudes tW0ard hetereosexual relations where as girls pay more attention to social conventions. 　　As the same questionnaire was also used in the same university in 1959, it gives an opportunity to study the change of attitudes among university students in these years. in general, the attitudes of the young people today toward dating and mate selection are more practival and less restrictive than those fifteen years ago. In selecting a mate, they are more tolerant toward all those personal factors listed in the questionnaire, from believing m a religion different from one's own to having a criminal record. However, the relative importance of those factors remains unchanged. Likewise, their unfavorable attitude toward pre-marital and extra-marital sex behaviour shows little change during this period of time. This seems to be contradictory to what people generally believe, a fact which justifies the need of a survey like the present one.