Purpose: This purpose of this study was conducted to identify the perceptions and experiences of smoking in college students. Methods: Colaizzi s phenomenological method was used. This study was 13 college students who participated in a smoking cessation program that allowed participation in this study and agreed to written consent The data were collected from September 1th to November 3th of 2017. At the in-depth interview, we used recordings and field notes. Results: The results show that 3-category, 6-concept, and 17-subcategory. In the analysis, three main categories were found: entry for the first time , standards for change due to smoking cessation, and maintenance of change through overcoming smoking. Conclusion: The results of this study not only have a positive effect on the understanding of smoking behavior of college students but also provide important data for the development of the smoking cessation strategy and the supporting data for the smoking cessation education.