Background:- HIV voluntary counseling and testing is an entry point to both preventionrnand treatment. Adolescents have to know their HIV sero status to enable them to seekrnappropriate treatment as well as to enable them to choose prevention strategies and adoptrnsafe sexual behavior. For effective service delivery in an area and the country recent andrnlocal information is very important.rnObjective:-Assessment of VCT utilization among preparatory students in Hawassa town.rnMethod:- The study was A cross-sectional quantitative study a total of 570 preparatoryrnstudents were selected using a two-stage sampling proportional to size method.rnResult:- Five hundred thirty (95.8%) of the study participants had good knowledge andrnattitude toward HIV/AIDS and VCT. Two hundred twenty three (40.3%) had VCT in thernpast 70(12.6%) females and 153(27.7%) males. With regard to service provision thernmajority preferred health professionals, integrated VCT center followed by self standing,rnface to face and weekends followed by after working hour as service provider, scheme,rnway to get HIV test result and convenient time. The finding showed that, not havingrnhistory of previous sexual practice and self standing VCT service scheme preference hadrnsignificant positive-associations while sidama in ethnic and married had significantrnnegative- associations with VCT utilization.rnConcussions:- The finding reflects knowledge-practice gap and IEC/BCC should bernprovided in a way that inspire preparatory students, make them perceive the benefits andrndrive them to practice. It is also advisable to provide voluntary HIV counseling andrntesting services in self standing-VCTâ€“center and youth-center and in extra regularrnworking hours (weekends and after working hour).