Raman spectroscopy, as a powerful detection method, often faces the problem of fluorescence interference. Time-gated Raman spectroscopy can reduce fluorescence interference. This article introduces the principle and technical characteristics of time-gated Raman spectroscopy, elucidates the development trend of the technology, and introduces different detectors and applicable scenarios for the technology. On this basis, important issues pertaining to the detectors are analyzed and the future development of detectors is discussed.