General body length: 20-34 cm. The black-bellied chinchilla is small and stout, with short limbs and neck, cylindrical body shape, brown back, and gray-black belly hair base. The black-bellied chinchilla is mainly nocturnal, does not hibernate, feeds on plants, and also eats a small amount of insects. It has 2 babies per year, and each litter has 2-6 cubs. It inhabits forests and forest edges in the middle and high mountains above 800 meters above sea level. , distributed in China, India, Myanmar, Thailand, Vietnam.

The black-bellied chinchilla has been listed in the World Conservation Union ( IUCN) 2008 Red List of Threatened Species. Like other wild chinchillas, the habitat of chinchillas is getting less and less, and under the condition of too many natural enemies, chinchillas face extinction, span>The black-bellied chinchilla is the largest species of chinchilla in the world.