An Integrated Analysis and Evaluation Support System for Sustainable Development (IAESSD) has been developed for analyzing and assessing energy systems from the aspect of sustainable development of regional, national even the global levels. The developed IAESSD consists of three major components: Multilevel Flow Model (MFM), Geographic Information System (GIS) and Driver Force, State and Response (DSR) model. The three components are linked together through the Energy Indicators for Sustainable Development (EISD). By using the IAESSD, appropriate options of energy policies can be evaluated by the three steps; (i)calculation of EISD indicators based on the MFM and GIS, (ii) causal analysis for the time changes of the EISD indicators based on the DSR model, and (iii)comparative evaluation of policy options. The tools and technologies of computer science and software engineering were applied to materialize the three modeling components to develop a workable software platform. As a case study, the whole energy system of China was simulated and evaluated by the developed IAESSD to deduce viable policy in her future from the aspect of sustainable development.