PURPOSE: The purpose of this study was to analyze addiction prevention related content shown in middle school text books. METHODS: Using a combination of the terms “addiction”, “drug”, “medicine”, “personal preference”, “smoking”, “drinking”, “sex”, “misuse” or “abuse” as key words, the researchers screened the table of contents of 23 randomly selected middle school textbooks from the 2009 curriculum. Finally 13 textbooks (physical education=10, health=3) were selected for this study, and analyzed using Krippendorff's contents analysis. RESULTS: Through indepth discussion and investigation of the relevant textbooks, content related to addiction prevention included material addiction (77.8%) and behavioral addiction (22.2%). The construction of addiction prevention in middle school textbooks included understanding addiction, rejection of peer temptation, and empowerment of self-control. CONCLUSION: When developing an intervention for addiction prevention that targets middle school students, education with accurate addiction information must be considered so that the students have the correct knowledge about addiction and addiction prevention. Additionally, the ability to reject peer temptation when invited to act upon related addiction behaviors should be treated seriously. The empowerment of self-control is also important, and can be promoted through strengthening self-regulation competence.