Abstract: D-mannitol is the main bioactive component of Cordyceps and its products, which is an important index to evaluate the quality and quality control of Cordyceps and its products. And, the Cordyceps and its products have been widely used in the production of health food, functional food, medicine, etc. Achieving effective detection of D-mannitol is the important precondition of Cordyceps cultivating, and study, processing, quality control to Cordyceps and its products. At present, studies on analytical methods of D-mannitol detection in natural or cultured Cordyceps and their products have been widely carried out. However, systematic review on the analytical method is relatively scarce. This paper reviewed recent techniques for the detection of D-mannitol of Cordyceps and its products. The advantages and disadvantages of each detection method were analyzed. The existing problems in this research field were pointed out and the follow-up research trend were forecasted. In order to provide theoretical guidance for the improvement of the existing detection methods and development of new detection methods, meanwhile, provide valuable references for the further development and research, quality control and detection standard setting of Cordyceps and its products.