Every sixth person or 15.7 percent of the population in Mongolia is a young person between 15 – 24 years of age. These young people faces a lot of sexual and reproductive health issues among which include high teenage pregnancy, STI and HIV infection. Forty-two percent of the STI infected population are young people aged 15 – 24 years, while 20.4 percent are HIV positive. Statistics also indicate 60.4 percent of young people had no information on where to access reproductive health services while 81.8 percent are not using any modern contraceptive methods. This advocacy brief explores the situational analysis of CSE in education in Mongolia, the laws, policies and programmes related to CSE and also the international best practices on CSE, with recommendations to strengthen the promotion and provision of CSE for young people.