This paper aims to analyze the changes in the structure of households with the elderly by the time trends, using census data. The conclusions afe as follows: 1. The ratio of the male of the single have been increasing at the middle ages, and that of female have been increasing at the sinior ages. And the most of the male of the single is under 50 years old, while over50 percent of the female of the single is over 50 years old. 2. The number of the elderly couple housuholds have been increasing rapidly. And the number become twice that of young couple in 1990. 3 The ratio of the stem family have been decreasing in all age groups. And that of households which are consisted of old elderly and their child's couple have been increased.
