Healthy life expectancy in some urban residents was analyzed with fundamental principles of Sullivan's method and mortality data in our residents and some data from national health service survey conducted in 1993 to assess their quality of life. Results showed that proportion of healthy to total life expectancy accounted for more in males than in females and in medium-sized and small cities than in large ones, and decreased with increase of age. It suggests that quality of life in some of our urban residents lowered with increase of age, was worse in women than in men and lower in large cities than in mediumsized and small ones.