Abstract: Hydrogen is widely considered as a clean，efficient and renewable energy. Compared to traditional hydrogen-production technology，solar energy-driven water-splitting combines several attractive features for energy utilization. The energy source and reactive media for solar water-splitting are readily available and are renewable，and the discharge product of H2 utilization is environmentally benign too. A variety of approaches to and technological advances of producing hydrogen，including photovoltaic，indirect or direct thermo-chemical，photo-electrochemical and photo-thermal electrochemical solar water splitting are summarized.

摘要： 介绍了传统氢的获取方式；综述了以太阳能为能源分解水制氢技术的研究进展；概述了光伏法、光热法、光电化学法及光热电化学耦合制氢技术的基本原理及技术关键；评述了反应器材料、半导体催化剂材料、光强、反应温度、反应压力等工艺条件对制氢效率的影响。展望了目前太阳能制氢技术的研究前景。