Three new species of the feather mite genus Proterothrix Gaud, 1968 (Proctophyllodidae: Pterodectinae) are described from passerines (Aves: Passeriformes) in China: Proterothrix angusticorporis sp. n. from the Chestnut-tailed Minla Actinodura strigula (Hodgson, 1837) (Leiothrichidae), P. disulcatus sp. n. from the Spectacled Fulvetta Fulvetta ruficapilla (Verreaux, J, 1871) (Paradoxornithidae), P. ianthocinclae sp. n. from the Spotted Laughingthrush Ianthocincla ocellata (Vigors, 1831) (Leiothrichidae). All three new species belong to the paradoxornis species group, which males are characterized by setae e of tarsi Ⅰ thickened, usually spindle-shaped, and the whip-like aedeagus.