The purposes of this study were to understand senior high school students' knowledge.attitude ,and behavioal intention of pregnancy and contraception and to study theirsources of knowledge and expected source of support when they need . Self-developedquestionnaires were used to collect data fm"i 678 2nd-year students of 4 junior highshcools and junior colleges. The major findings include (l)these students knew fairlywell about pregnancy but little about conctracepiton.(2) 2.4 of the subjects had sexualexperience before . More male students from rural schools experienced sexual intercourse. Also, those who had such experience expressed more liberal attitudes towardsex.(3) 46.1 of the female students would be married to the father of the fetus if theywere pregnant and 39.1 would abort the fetus, while the percentages of male studentswere 58.7 and 29.1. 39.7 of the females would quit the school ,34.7 would like toattend special programs for pregnant students and 20 would like to stay at school.68.5 of the males would stay at school.(4)Students obtained general sexual knowlegefrom their peers. Specific knowledge would come from books and school teachers.Parents were not their prime source. Medical professionals and school teachers wereconsidered the most appropriate persons to teach pregnancy and contraception, and parents were ranked next. Researcher made some suggestions about how schools and parents could do to provide correct knowledge for the students.