The Purpose of the study was to understand actual difficulties of the obese children who thought as negative and discriminative and furthermore to find a way to improve them through stating their lives. To attain the purpose of the study, the participants consisted of the four students(3 male students & 1 female student) who hoped to participate in this study among the third, fourth, fifth, and sixth grade students in Haengbok Elementary school in D county, D metropolitan city. Data were collected through in-depth interviews, gathering of related materials, etc. from March through May in 2009 and the major method of data collection was in-depth interviews. In-depth interviews were officially conducted twice and additional interviews on any questions continued during the period of the study. Such related data as the students\' compositions in relation to \'obesity\', mind-map, physical education diary and so on were collected and utilized as materials to supplement in-depth interviews as well. Data were analyzed using case record method and inductive categorical system and triangulation was used to secure trustworthiness of the data. Detailed results are as follows: First, the followings were the causes of getting obese: My parents say that it\'s okay; Oily foods are the best; I always have the feeling of hunger even though I had meals; I\'m always in a hurry; I don\'t like to move my body. Second, mental difficulties were as follows: They say, \"you\'d better stop eating,\"; My friends make fun of me; I\'m shy and afraid, etc. Third, physical difficulties were like these; Huff, huff! I\'m out of breath and tired; I finish last in the running; Sweat comes out and I\'m annoyed. And lastly, as efforts to solve obesity were as follows: I will eat small portions of food; I will exercise; I will eat more vegetables than meat.