This study purposed to determine the relative impact of a number of family and household work variables on childrens household work performance and their mothers satisfactions on that. A questionnaire was administered to 239 mothers and their children respectively living in Daejeon. Data were analysed using multiple regression analysis. Results were as follows: (1) A childs household work was influenced by mothers employment status and health status, a childs sex, her expectation on the childs household work performance, and the grade. (2) Mothers satisfaction on the childs household work was most influenced by the length of household work time and their spontaneity.