The purpose of this study was to develop an indicator-system for the Qualitative Improvement of adolescent-wellbeing and to present objective criteria to evaluate the level of adolescent-wellbeing. For this purpose, and indicator system-with literature review- has been developed. Indicator items are filtered through the application of the `Delphi Process` to graduate students, professors-and other relevant experts. As a result, This study has constructed 36 Subcategories and 207 indicator items in 8 categories : Population - Family - Neighborhood, Economic Security, Parents situation, Health, Education, Culture, Information - Telecommunication, Social Welfare.