This study aimed to determine the relationship between the level of Knowledge and attitude towards the use of contraceptive methods as Prevention of teen pregnancy in the fifth year students of secondary EI San Juan de Maynas district and province of Moyobamba, San Martin Department. Period: July-October 2015, quantitative descriptive Correlational cross-sectional study. The sample was composed of 125 Students, who met the inclusion and exclusion criteria. To measure the Variables level of knowledge and attitude towards the use of Contraceptive methods, it was used as the survey method and a checklist Was used to corroborate the student's attendance and enrollment. The results were: The level of knowledge about the attitude towards Contraceptive use stood at an average level with 79.2% and 19.2% Conceptualized at a high level, attitude toward the use of contraceptives Was indifferent to ...