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This study has been done in the category of applied research with qualitative paradigm by thematic analysis through an inductive approach.From reliable first-hand documents and resources in terms and keywords of this inquiry in thriving countries,45 cases were selected by purposive sampling.The data collection tool was manual and computer notes(MAXQDA,2020).The network of themes extracted in the findings indicates a conceptual model with five broad themes(curriculum competencies,educational strategies,student,teacher and challenges and opportunities)and a practical model with five broad themes(School's curriculum,educational activities,operational activities,student activities,and teaching activities).The study shows that in prosperous countries like Finland and Sweden,students' start-ups have been started for many years and are going on regularly and desirably.Since this type of activity has been neglected in Iranian curricula,it is suggested that the curriculum of start-ups in the second year of high school be designed & implemented based on the criteria an indicatores provided in the models of this research.