Structure of energy consumption in seven large cities in Japan was analyzed and compared. Urban activity was divided into four sectors, namely manufacturing, household, transportation, and commercial sectors. Consumption of oil, gas, coal and electricity in each sector was estimated in each of seven cities from 1980 to 1989. Existing statistics describing fuel or electricity consumption of each city were surveyed. Use of national average value of enrgy consumption was avoided so that characteristics among each city could be estimated. Beside total energy consumption per urban area, energy consumption in household, commercial, manufacturing and transportation sector per residential area, commercial area, industrial area and total urban area, respectively, were calculated. Energy consumption in each sector per population engaged was also calculated for each city. The developed method is satisfactory to evaluate the characteristics of energy consumption among different cities.