The Luojishan Chinese Vole is known from the high-elevation Luoji Mountains of southwestern Sichuan, China. In summer, its back is brown-black and its underside is paler, with an abrupt boundary along the flanks.
Summer pelage is uniformly brown-black from neck to hips, with fine, velvet-like dorsal hairs about 10 mm long. Ventral hairs have grey-black bases and yellow-brown tips; some specimens have yellow-white tips. The transition from the darker back to the lighter underside is abrupt along the flanks. The tail is almost uniformly grey-black above and below. There are about 20 mystacial vibrissae on each side of the muzzle, roughly half white and half black-grey, about 4–25 mm long. The description gives a usual head-and-body length over 95 mm (mean 103 mm) and hindfeet 17–18 mm. The adult female holotype measured 108 mm in head-and-body length, with a 55 mm tail, 18 mm hindfoot, 13 mm ear and body mass of 30 g.
The holotype was trapped at 3,680 m in original fir forest in Luojishan Nature Reserve. The original account describes habitat above 3,000 m as rhododendron scrub with scattered fir. Rhododendron shrubs were 2–3 m tall with 50% cover; sparse firs were about 6–7 m tall with 20% cover. The understory had about 10 cm of humus and abundant moss with 80% cover. Breeding begins in late May. About 50% of adult males examined then showed testicular descent, while the pregnancy rate among adult females was described as very low.
An extinction-risk assessment has not been added yet.