本文探究ICT對能源消費是否具有效率提升的效果而促使能源消費的下降。由於家庭生活乃經濟社會最基本的單元，家庭節約能源的成效攸關整個經濟社會節能減碳的成果，故本研究探討ICT對住宅部門能源消費的影響。 本研究利用縱橫資料分析法，以能源別的角度切入，探討台灣2002年1月至2011年12月ICT對住宅部門能源消費的影響。研究顯示ICT與住宅部門能源消費呈正向關係，歸因於隨著生活水準提高，電器用品被廣泛的使用，不僅在數量上增加，種類也較多，且使用時間也較長，所以導致消費更多能源。消費者物價指數之估計係數為負，表示消費者物價指數與能源消費呈負關係。石油、天然氣及電力3種能源價格之估計係數皆為負，代表隨著能源價格上升，人們會少消費該能源。所得之估計係數為正，表示隨著所得水準提高，生活水平會提高，能源消費支出隨之增加，故能源消費量隨所得增加而提高。人口增加率、家庭人口及住宅建築物樓地板面積之估計係數幾乎皆顯著為正。表示這些變數的增加，會促使能源消費設備數量增加，故增加整體住宅部門的能源需求量。 This study investigates whether ICT can help to reduce the energy consumption by enhancing the energy efficiency. The impacts of ICT industry development on the energy consumption of residential sector is investigated since the household energy conservation is the key factor for the success of energy conservation and carbon cut in our social economic system. This paper applies the panel data analysis to examine the impact of ICT on energy consumption in residential sector in Taiwan during the period of January, 2002 to December, 2011. The results show that ICT and energy consumption in the residential sector have a positive relationship. This is because more energy use as living standards increase accompanying by the widely use of electrical appliances, not only increasing in number, species, and the use of time. The consumer price index estimated coefficient is negative, which means the consumer price index has negative relationship with the energy consumption. Oil, natural gas and electricity energy prices estimated coefficients are negative, which means people will consume less energy as energy prices increase. Income estimated coefficient is positive, which means energy consumption will increase due to the higher living standards brought by the higher income levels. Almost all the estimated coefficients of population growth rates, household population and residential building floor area are significantly positive, which means more residential energy demand will be generated as the number of energy consumption equipments enlarges with the increase of population rate, household population and residential building floor area.