Myotis siligorensis is an insectivorous bat that lives in limestone caves, lowland second growth forests and evergreen forests (Surlykke et al. 1993, Molur et al. 2002, Duckworth et al. 1999, Robinson and Webber 2000). In China, the species has been recorded in second growth forests over streams and at the mouth of caves (Smith and Xie 2008). In South Asia, this species roosts in caves and crevices in old buildings (Molur et al. 2002). This species has been recorded to roost in rock crevices/shafts formed in stalactites and fissures in caves (Lim et al 2017, Robinson and Webber 2000). The species is found near streams and forages 1-3 meters above the water or bankline (Tshering et al. 2020, Robinson and Webber 2000, Kruskop et al. 2018). They also forage in scattered secondary growth deciduous trees at the height of 2 to 5 meters and are some meters away from vegetation (Surlykke et al. 1993, Suksai and Bumrungsri 2019). This species forages at low altitudes but are high-flyers that are found foraging for insects near human dwellings (Bates and Harrison 1997, Smith and Xie 2013). It emerges out of the caves after sunset (1845 hours) and hunts until 0200 hours (Surlykke et al. 1993). Due to M. siligorensis being an insectivorous bat, there is an increase in activity of this species during dry seasons due to the increase of the population of insects that M. siligorensis eats (Suksai and Bumrungsri 2019). This species has a generation length of 4 to 7 years (Molur et al. 2002).

In South Asia, the species is presently known from India (Meghalaya, Sikkim, Uttarakhand, Himachal Pradesh, and West Bengal), Bhutan (Samtase, Dagana, and Chukha districts), and Nepal (Central) (Tshering et al. 2020, Das 2003, Molur et al. 2002, Saikia et al. 2004, Sharma et al. 2013). The species has been recorded from South to Southeast China (Guangxi, Guangdong and Yunnan Provinces), including the island of Hainan (Smith and Xie 2013). In Southeast Asia, the species is extant in Northern and southern Thailand (Surlykke et al. 1993, Hughes et al. 2011), Northern Myanmar (Molur et al. 2002), East Myanmar (Shan Plateau) (Nyo 2005), Lao PDR (Thomas et al. 2013), Vietnam (Das 2003, Molur et al. 2002), Cambodia (Sharma et al. 2013), Peninsular Malaysia (Kingston et al. 2003), and Western Sabah (North Borneo, East Malaysia) (Benda 2010). It has been recorded from sea level up to 3,000 m asl. (Surlykke et al. 1993, Molur et al. 2002, Tshering et al. 2020).

This species has been recorded from several protected areas in Southeast Asia, including the Krau Wildlife Reserve (Malaysia), Wang Kelian State Park (Malaysia) and the Ulu Muda Forest Reserve (Malaysia) (Lim et al. 2017). This species is found in the Khammouan Limestone National Biodiversity Conservation Area, Lao PDR (Robinson and Webber 2000). In South Asia, there are no direct conservation measures in place for this species and the species has not been recorded from any protected areas. Surveys, ecological studies, as well as population and habitat monitoring are recommended (Molur et al. 2002).