The concept of Adolesce nt reproductive Health (ARH) has gained attent ion follow ing the international conferencern(ICPD) held in September 1994 in Cairo, Egypt. Reproductive heahh problems assoc iated with the ri sk behaviour andrnvulne rabil ity of adolescen ts, especially in re lation to early and unwanted pregnancy, un safe abortion, sexuallyrntransmitted infection and HIV/AIDS. Therefore, addressing risk behaviour is certainly important, considering thatrnmany adolescents have ins ufficient factlJaI knowledge of sexual and reproductive health. Also they have in adequaternguidance from adults and limited access to health care services, of course sexual intercourse is an inevitablernprecondition for the generational continuation of human existence. In the current conditions of HIV/AIDS as a newrnglo bal risk, however, sex has become a possible threat to existence of people in all societies.In this study, an attempt has been made to in vestigate the i~of sex u a l ~alth among the school adolescents in AddisrnAbaba High School. Risks of sexual behavior cannot be predicted in the current circumstances in which especiallyrnadolescent meet many ri sky challenges that drive their behav ior and even their int imacy. When th e world around themrnis rapidly changing young people face threatening syndromes like HI V/AIDS, which cause ontological uncertaintyrnbecause of their un known character.rnAdults impose their sex ual worries on to children and young adu lts in ways, which are relatively inaccessible andrnbounded by what cannot be sa id aloud or clearly s e~n because of the taboo character of sex. Taboo makes the issue ofrnsex extremely diffi cult to di scuss with young people, the exact ri sks, however, being warned about.rnMost of these risks arc preventable but many paren ts, opin ion leaders and policy makers are afraid to act. They do notrnwant to inform young people about sex and its consequences because they believe th is will lead to teenage promiscu ityrnand immorality. Parents might be embarrassed to bring up reproductive health wi th their children, opinion leaders mayrnnot speak out because they wish 10 avoid contro ve rsy. As a consequence, our societies face unnecessary human andrnsocial costs.rnThe purpose of th e study is to in..x.e~t i ga t e... th e_status of reproductive hea lth among ado lesce nts in Addis Ababa HighrnSchools, by usi ng prin)ary and seconqary sources of information. Its main objectives arc I) to assess the knowledge,rnattitude, beliefs and perceptions of reprod uctive heal th pract ices of high school s tudents in Addis Ababa, and 2) to maprnout their sources of information and 3) to assesses att itudc of adolescent towards sex education.rnThis study was carried out in Addis Ababa High School students. At the time of data coll ection, there were 70 HighrnSchools and a total of 96,57 1 students all in at! in the city. Out of these l..Q..schools randomly se lected and 600 studentsrnwere sampled from each grade and gender (3 14 males and 286 females). The study was conducted in Mwch 2005.rnThe major findin gs of the study showed that age of adolescents determine thei r sexual behaviour; the ir knowledge onrnaspects of their own sexual ly is seen incomplctc and not enough to minimi ze ri sk-taking behavior. Younger adolescentsrnshown more open att itudes toward sexual issues th an the older adolescents do. The knowledge about sexual healthrnissues comes from health professionals and teachers as well as some patchy information is receivcd from peers of thernsame sex who may th emse lves be too litt le informed or misinformed.rnBased on the out comes of the study, seeking of general information on how to behave in the sexual life sphere wasrnpositively percei ved, as claimed by both male and female adolescents. Yet more than half of all adolescents believe thatrnit is unacceptable to discuss these matte rs openly with their parents or adults.rnIt is a lso found from the ana l y~is that a greatcr number of male than fema le respondents know more about the top twornco ntraceptive methods namely condom and pill s. Most part, more than (8 1.8%) of all adolescen ts, indicate their interestrnto use contraceptive mcthods in the futu re.rnThe study indicates that quite large portion of male (44.3%) and females (39.5%) among the population undcr the studyrnwere sexually active, more th an half of them (67.5%) reported to have had unprotected sexual intercourse. While thernrest telt that they used contraception (condom) in the past. The general attitude is that the act of premarital intercoursernis not supported in this survey. Based on the findin g, some suggestions arc forwarded for futu re needs to initiate sexrneducation in the school curriculum emphasizing the community-based efforts, as recommended. Furthermore, forrnpractical reasons, community based preventive interventions s ites need to be established by enabling the ex istingrnnetworks: health fac ilities, relig ious organi zation s, school teachers and peer educators.The usc of trained peers asrneducators could be a part of lhe school curricu lum and an inc rease of lhe responsi bi lity of parents in matters concerningrnsexuality of adolescents might ease the workload on health profess ionals and teac hers.