Following our investigation of time use by employed husbands and their wives in Tokyo in 1975 and 1980, we conducted in Oct. 1985 the third survey of couples with children in Tokyo Tama New Town. This report contains the aim, method and outline of our survey. The primary purpose of this survey was to understand the influence that long working hours of husbands would have on family life. Couples were selected through local newsletter issued by the city government. The total number was 202, out of which 159 were collected and 150 were found to be effective as samples. The families included 70 non-employed wives, 50 part-time employed wives and 30 full-time employed wives. The average age of husbands were 40.7, and wives were 37.3; 68% of the husbands and 40% of the wives had received higher education. We will present the outline of our analysis.