Background: Premarital counseling is one of the most important strategies for prevention of genetic disorders, congenital anomalies and several medical, psychosocial marital problems. It can provide an opportunity to intervene according to the identified risk. Aim: to evaluate the effect of educational program on knowledge and attitude of technical school students regarding premarital counseling. Design: Pre/post-quasi-experimental research design was used in this study. A Purposive sampling of 400 unmarried female students were included in the study. Setting: Elfekria Female Technical School in Abokorkase at Minia City. Tools: two tools were utilized to collect data. The First tool was included socio demographic data and the knowledge about premarital counseling and, the second tool was included the attitude assessment tool about premarital counseling. Results: the majority of students (82%) had poor knowledge before the educational program which decreased to (11.5%) after the educational program. Moreover, more than half (55.8%) of them had negative attitude before the educational program which decreased to (17.8%) after the educational program. Conclusion: the study concluded that implementation of educational program was effective in improving Knowledge scores and attitude of technical school student for premarital counseling Recommendation: providing continuously health education programs about premarital counseling in every technical school because those target group of students marry during or early after finishing school so these programs are very useful for them also incorporate information about premarital counseling and examination in school curricula.