Abstract: EGS is abundant in the word, stable and environment-friendly. Some developed countries have done research works as demonstration. This paper gives introduction to the EGS research advances from its nature (research & development), technology and development, compares its resource in the US and in China, and discusses its economy, environment and stability, and presents reveals its implication to China's EGS exploration and development. EGS is of huge resource in China, if supported by nation's policy and market and acquired key technical research based on the combination of resource evaluation and project demonstration, will help China develop and use EGS.

Key words: hot dry rock, boosted geothermal system, development, key technology

摘要： EGS资源丰富，具有环保和可靠的特性，世界上一些发达国家开展了许多示范性研究开发工作。文章从EGS项目性质（研究、研发和商业开发）、关键技术（选址和激发）以及开发策略等几个方面，介绍了世界EGS项目的进展及发展趋势，对比了美国和中国的EGS资源，进而介绍了EGS资源的经济、环境和可靠性，最后提出了对中国EGS资源勘探开发的启示。指出，中国EGS资源巨大，如果将资源评估和项目示范相结合开展EGS关键技术的研究且能获得国家政策扶持和市场支持将有益于我国EGS的资源开发与利用。

关键词: 干热岩, 增强型地热系统, 开发, 关键技术