( ) is a fungus with a long history of widespread use in folk medicine, and its biological and medicinal functions are well studied. A crucial pharmacological effect of is immunomodulation. In this review, we catalog the immunomodulatory effects of different extracts of , namely total extracts, polysaccharides and cordycepin Total extracts obtained using water or 50% ethyl alcohol and polysaccharides from were discovered to tend to promote type 1 immunity, whereas total extracts obtained using 70-80% ethyl alcohol and cordycepin from were more likely to promote type 2 immunity. This article is the first to classify the immunomodulatory effects of different extracts of . In addition, we discovered a relationship between different segments or extracts and differing types of immunity. This review can provide the readers a comprehensive understanding on the immunomodulatory effects of the precious folk medicine and guidance on its use for both health people and those with an immunodeficiency.