In August 2016,eight individuals of bats were captured in Gongri Village, Damu Township and Beibeng Village, Beibeng Township in Medog County, Xizang Autonomous Region, China. Only one female individual was retained as a specimen and brought back to the laboratory (162427, ♀). The morphological and skull features of the specimen were measured using electronic digital calipers. Based on the cytochrome b (Cyt b) and cytochrome c Oxidase subunit 1 (COI) gene sequences, the phylogenetic trees were reconstructed using maximum likelihood method in MEGA 7.0. The main diagnosis characteristics of the specimen are as follows. The specimen is large, with head body length of 78.7 mm and forearm length of 92.5 mm. The hairs are long and fine, the whole body is dark brown, the hair base is light brown and white, and gradually transitions to brown. The belly hair color is light, the hair base is gray, and the hair tip transition to grayish white. The hind-foot length is 17.2 mm, less than half of the tibia length (39.8 mm). There is no notch in the middle of the anterior nasal lobe and 4 small accessory leaves on both sides (Fig. 1b). The ears are large and sharp, with a sunken back edge. The skull is relatively flat, with a maximum length of 31.9 mm and a brain-case height of 13.3 mm. The rostral process of the skull was significantly increased from front to back, connected with the sagittal spine. The zygomatic arch is wide and the zygomatic arch plate is high. It is consistent with the shape and skull characteristics of the Hipposiderosarmiger. The data of head length, ear length and tail length are slightly smaller than those of Yunnan, Sichuan, China and Vietnam, but the skull data are similar (Table 1). Phylogenetic analysis based on Cyt b and COI gene sequences showed that the captured bat was well clustered with H.armiger (Fig. 2). Combining morphological and molecular data, the bat was identified as H.armiger, a new record for Xizang Autonomous Region, China. The specimen was kept in the Institute of Zoology, Guangdong Academy of Science.