Through harp traps, 7 forest bats (6 males and 1 female) and 5 forest bats (all females) were collected respectively in Shixi Village (26° 37.143′ N, 114° 10.875′ E, alt. 777 m) and Zhushachong Forest Farm (26° 33.703' N, 114° 11.232' E, alt. 805 m), both in Jinggangshan National Nature Reserve, Jiangxi Province, China, in July and August, 2013. The typical characteristics of these bats include small-sized body (forearm length 30.16 – 33.85 mm, greatest length of skull 13.90 – 14.76 mm), with long-lanceolated tragus and funnel-shaped ears, but no noseleaf structure. The skull is flattened and its dental formula is 2.1.3.3/3.1.3.3=38. And the characteristics of karyotype include that the chromosome number (2n) is 32, and the fundamental number (FN) is 52. They were identified as Kerivoula titania, a new species of Southeast Asia described in 2007. It is the first record in Jiangxi Province and Mainland China (excluding Hainan and Taiwan). The feature of morphological structure and skull of the specimens were given, and all the relevant measurement data were given and analysed. The data differences between males and females of K. titania in Jiangxi Province, also the data differences between Jiangxi Province and Southeast Asia of K. titania were tested by t-test through SPSS software v19.0. The result show that sexual dimorphism of K. titania is not obvious but K. titania distributed in these two areas may have appeared certain differentiation in morphology. Besides, the karyotype of K. titania were given and analysed. The ecological and conservation status of this bat species in the world also had been discussed. All specimens were preserved in School of Life Sciences, Guangzhou University.