The purpose of this study is to research into the relationship between the clothing purchase practices of high school girls and the economic level of the households. For the survey of Economic Level of the households, the information of the monthly income of the households were extracted from the Annual Report of the City-Household in the Economic Planning Board. The survey of clothing purchase practices is based on Ryan`s Clothing; A Study in Human Behavior. The questionnaires were distributed to the seven girls` high school in Seoul. The data from 354 respondents was analyzed by Pearsons` r, ANOVA and x2 test. The Results were: 1. There was a significant relationship between clothing purchase practices variables and the monthly incomes of the households. 2. There were differences in clothing purchase practices variables according to the monthly incomes of the households. 3. There were significant relationships among the three clothing purchase practices variables.