中文摘要：

1980-2004年中国能源消耗（生活消耗除外）出现了较大波动,本文运用完全分解模型研究了能源消耗的减物质化过程。结果表明,1980-2004年累计节能量为80790万吨标准煤,同时受国家宏观调控政策的影响,1980-2001年中国能源消耗减物质化处于波动之中,节能缺口幅度大致在1.0之内频繁波动（绝对值）,2001年以后中国能源消耗减物质化出现了剧变,节能缺口急剧下降,实际节能率远远低于潜在节能率,能源供应出现了紧张局面。

英文摘要：

Based on the complete decomposition model, this paper analyses the dematerialization in the energy use of China from 1980 to 2004 and indicates that, during this period, the dematerialization of energy use in China had been fluctuated, with the gap of energy saving fluctuating around 1.0 from 1980 to 2001; but since 2002, the gap had changed drastically, and the actual energy saving ratio had become much lowered than the potential energy saving ratio.