The major purpose of this study is to examine the effect of the extracurricular lesson expenses on the Burden of Household Expenditure. The data are collected from 537 housewives with a child aged 18(2nd grade in high school) in Seoul. The statistics used for the data analysis are frequency, percentage, crosstables, one way ANOVA, and multiple regression. The statistic softwear used for this study is SPSS. The Result on a base of empirical analyses follow: 1. Respondentg’s expenditure on extracurricular lesson fees is about 430,000 won per month, which is about 28% of the living cost. 2. There are four types of the methods preparing extracurricular lesson fees: ‘Frugal Type’, ‘Excess Type’, ‘Composit Type’, ‘Self-supportable Type’. 3. Region, the living cost, sex of children, net worth, and the mother’s education show statistically significant effect on the extracutticular lesson expenses. 4. The regression analyses incicate that Burden of Household Expenditure increased by 1.9 point according to 1% increase in expenditure on extracurridular lesson fees. The higher budget share of expenditure on extracurricular fees, the higher level of Burden of Household Expenditure.