The subfamily Cyclidiinae from China is reviewed: two genera and seven species are reported from China. One new subspecies, Cyclidia fractifasciata indistincta subsp. n., is described. Two new synonyms are established: Cyclidia substigmaria (Hübner, 1831) (= Cyclidia substigmaria brunna Chu & Wang, 1987, syn. n. = Cyclidia tetraspota Chu & Wang, 1987, syn. n.). One misidentification in Chu & Wang (1987) is corrected. Identification keys and diagnoses for all discussed Chinese species are provided. External features and genitalia are depicted. In addition, results of DNA barcoding for five taxa of Cyclidia are briefly discussed.