『Abstract
　For the Chinese industry as the mainstay of the national economy and dominant energy user and carbon emitter, an integrative assessment is performed from major energy policy perspectives of energy security, energy efficiency and carbon emission. Extensive systems indicators, including oil dependence ratio, average oil growth rate; indices of energy diversity, of carbonization and of oil growth risk; ratios of energy use to output, to value added and to compensation for laborers; ratios of carbon emission to output, to value added and to compensation for laborers, are devised to assess the Chinese industry 2002-2007 with most recent statistics availability. Combined indicators are identified by sparse principle component analysis to characterize sector performances. The industrial sectors are classified into five clusters and the main features of each cluster are pinpointed using fuzzy clustering algorithm. Concrete results facilitate comparisons of sectors to enable more accurate policy recommendations.

Keywords: Energy security; Energy efficiency; Carbon emission』

1. Introduction
2. Methodology and data sources
　2.1. Indicators for energy security, efficiency and carbon emission
　2.2. Sparse principle component analysis
　2.3. Fuzzy clustering
　2.4. Data sources
3. Results and discussion
　3.1. Original indicators
　3.2. Principle component analysis
　3.3. Combined indicators
　3.4. Sector clustering
4. Conclusions and policy implications
Acknowledgements
Appendix
References