The head of the white-tailed long-eared hare is 47-63 cm long, the English name of the tail is 50-112 mm, and the ears are 10-13 cm long. They are true wild rabbits, thinner than domestic rabbits, with longer ears and legs. Tubular long ears (ears several times longer than ear width); tufted short tail, strong hind legs much longer than forelimbs. Newborn pups have a fully furry form and open eyes. This species has a black stripe on the center of the back, a black patch on the rump, and a black tail on the back. Both sexes look similar, but females are larger of the sexes.

There is a wide gap between the incisors and the cheek teeth (missing canines, part incisors and part premolars). Herbivorous, with dual digestive functions, that is, after the cecum is enriched with a large amount of vitamins, the capsules are wrapped into soft feces, which are excreted from the anus, swallowed by themselves, and digested to make full use of vitamins (soft feces contain many times more vitamins than normal feces) , and then discharged feces is round hard feces.