Based on the studies of types and relative specimens of Brachytheciaceae (Bryophyta) from Xinjiang Uygur Autonomous Region and foreign countries,Brachythecium trachypodium (Funck ex Brid.) Schimp.was firstly recorded in China.The distribution of Brachythecium collinum (Schleich.ex Müll.Hal.) Schimp.and Homalothecium philippeanum (Spruce) Schimp.in China,which has ever been mentioned by Chen P.-C.and not included in the Moss Flora of China,was reconfirmed.Morphological descriptions and illustrations of these three species were provided.This paper will provide new reference to Brachytheciaceae of China.