Four specimens belonging to the subfamily Myotinae were collected from two dwellings (33°43′41″ N, 107°25′13″ E, 1 030 m; 33°43′04″ N, 107°23′59″ E, 1 007 m) in Qinling Mountain, Taibai County, Baoji City, Shaanxi Province in 2011 and 2014, which were preliminarily identified as Myotis muricola moupinensis,and are kept in the Shaanxi Institute of Zoology. In this study, the morphological characteristics of the collected specimens were compared and analyzed with reported data of M. muricola, and we identify their species based on the phylogeny of mitochondrial cytochrome b gene sequence, combined with the homologous sequences of 25 bat species obtained from the NCBI database (Table 1). The morphological characteristics are consistent with the original description of M. m. moupinensis by Milne-Edwards (1868-1874) and the redescription by Allen (1938). All specimens are small-sized (length of head and body between 34.59 mm and 43.86 mm, n = 4). The ears are small and black; the anterior edge of the ear is nearly convex, and the posterior edge of the ear has a shallow notch under the apex. The tragus is slender, about half the length of the ear. The feet are small, less than half the length of the tibiae. The hairs on the dorsal surface have dark brown bases and the tips are flecked with russet brown. The ventral hairs have black bases and ochraceous brown tips. The wing membranes are attached to the distal end of the outer metatarsal of the feet. All morphological measurements were in accord with those from M. m. moupinensis. In addition, based on the mtDNA Cyt b gene of 26 bat species, these individuals clustered with Submyotodon sp. and combined into a monophyletic clade in the phylogenetic tree, with a closer genetic distance to S. sp. than to any other species (Fig. 3). The minimum genetic distance was 0.7% between the collected samples and S. sp., the genetic distance between the collected samples and S. caliginosus is 9.5%, and the maximum genetic distance between the collected samples and M. cf. browni is 21.7% (Appendix 1). In summary, based on the morphological and phylogenetic evidence and the latest information on the classification and distribution of mammal species in China, the species collected in Qinlin Mountian in Shaanxi Province are preliminarily identified to be M. muricola moupinensis, which is the new record of Shaanxi Province.