The purpose of this study was to investigate the effects of clothing materials on the atopic determatitis of atopic patients. A questionnaire was used as the measurement tool of this study. The survey of questionnaire was performed for atopic patients of 987. For the statistical analysis of data, $X^2$-test and percentage of SPSS were used. In the analysis results of the clothing materials which are both effective and ineffective against atopic determatitis, the results indicate that the most effective clothing materials for atopic determatitis were the those containing natural aroma and the most ineffective clothing materials for atopic determatitis were the those containing nylon. In the difference analysis results of both the relapse materials and the relapse factors for atopic determatitis according to demographic variables, both the relapse materials and the relapse factors for atopic determatitis showed a significant difference according to gender, age, educational background, monthly income, and occupation. Consequently, the results of this study will help develop the clothing materials suitable for atopic patients and lay the foundation for managing atopic determatitis more effectively through the rational choice of clothing of atopic patients.