太阳能具有分散性强、能流密度低、适合得到中低温热源的特性，太阳能低温热利用是人们最早认识和利用的太阳能转换手段，也是将来太阳能低成本、规模化应用的最重要的领域。本论文针对太阳能集热、太阳能采暖、太阳能干燥、太阳能热泵、太阳能空调、太阳能低温热发电等几个当前太阳能低温热利用的主要技术，介绍了各种技术的应用原理和背景，分析了各种已有技术的研究现状和社会需求，讨论了部分新技术的未来发展方向。同时介绍了中国科学技术大学在该领域的一些研究进展。

Based on its properties of strong scattering and low energy flux, the low-temperature heat can be easily obtained from solar radiation. Solar low-temperature heat utilization is the earliest solar energy conversion means known by humans and widely applied. In the future, it will remain to be the most important means of solar application, which can be used extensively and economically. The background and theories of several main technologies of low-temperature solar thermal conversion are introduced in this paper, such as solar thermal collection, solar space heating, solar drying, solar-assisted heat pump, solar air conditioning and low-temperature solar thermal power systems. Based on the research status of various existing techniques and social needs, the future development direction of this area is discussed. The research on the low-temperature solar thermal conversion in the University of Science and Technology of China is also presented in this paper.