TOP SELF, that is, Trial of Prevention School Education for Life and Friendship, has been developed by Yamasaki, Sasaki, Uchida, Katsuma, & Matsumoto（in press）. The present paper aims to depict how the program purposes have been developed and constructed. Firstly, the characteristics of TOP SELF and the partial optional education are explained, and then the construction of the hierarchical purposes of smoking?preventive is specified as starting with the literature review. Theorists have argued that knowledge?focused preventive education is not effective and that social and psychological components in preventive education should be considered to improve outcomes. The construction of the purposes includes constituent, intermediate, subordinate and operational purposes. The higher?order purposes are more likely related to the realization of primary purposes, whereas operational purposes directly relate to educational methods. Those purposes are derived from evidence based outcomes in the literature. Challenges and the future direction are discussed at the end.