Adolescents are a group that is at risk of developing anemia caused by a lack of iron in the body due to various triggering factors, including monthly menstruation and an unhealthy lifestyle. Anemia in adolescents can result in decreased immunity, decreased concentration, and decreased appetite. The long-term impact, when they are adults and pregnant will be at risk of experiencing anemia in pregnancy and giving birth to babies with LBW or premature. Therefore it is necessary to have an understanding of anemia and how to detect signs and symptoms that appear so that adolescents can immediately overcome the problems they face. The target of this activity is young women at the Bina Insani Depok Halfway House. The purpose of this activity is to increase knowledge about anemia and how to detect signs and symptoms of anemia. The number of participants was 39 young women. The method used is the provision of health education with lectures, questions and answers, discussions, demonstrations, and re-demonstrations. Before the implementation of the activity, a pre-test was carried out and after that a post-test was carried out using a questionnaire. The results showed an increase in knowledge of 38.86% and 82% psychomotor in young women regarding how to do early detection of signs and symptoms of anemia. This shows the provision of health education using a variety of effective methods to improve knowledge and psychomotor.