Integrated multi-energy system is an effective way to improve the comprehensive efficiency of energy system, enhance the coordinating capability of energy supply and demand, as well as facilitating the nearby digestion and high-efficient use of clean fossil and renewable energy. This report aims at a better promotion of advanced technology related to integrated multi-energy system for APEC and contribute to the development of utilization level on cleaner fossil energy and enhance technological progress of renewable energy in the APEC region.