红外技术为现代社会提供了包括遥感、成像、计量、产品检验、环境监测及生物医学诊断等诸多领域的应用价值。第三代红外光电探测器对易制造、低成本、可调节的红外光电材料的需求， 推动了红外量子点的发展。本文阐述红外量子点的制备方法，概述了红外胶体量子点探测器研究发展历程，并列举了红外胶体量子点在光电领域的代表性研究成果。最后对红外量子点光电探测器研 究进展进行了总结，提出了几个亟待解决的研究问题。为红外量子点探测器商业化提出了指导。

Infrared technologies provide tremendous value to our modern-day society, in the fields of remote sensing, imaging, metrology, product inspection, environmental monitoring, and biomedical diagnostics. The demand for the third-generation infrared photodetectors, to enable easy-to-fabricate, low-cost, and tunable infrared active optoelectronic materials, has driven the development of infrared colloidal quantum dots (CQDs). This review introduces the preparation methods of infrared CQDs and development of infrared CQD detectors, and lists the representative research results of CQDs in the field of optoelectronics. Finally, the infrared quantum dot photodetectors are summarized, and several research problems are proposed. The results of this study guide the commercialization of the infrared quantum dot detector.