Conchoraptor was a small dinosaur, only 1–2 meters (3.3-6.6 feet) in length. Unlike many other oviraptorids, Conchoraptor lacked a head crest. Like its relatives, it lacked teeth. Instead of teeth, oviraptorids had powerful beaks, possibly adapted to crushing mollusk shells. The skull of Conchoraptor was heavily pneumatised, with most of the bones hollow. Internal connections between both ears functioned as resonance chambers and improved hearing.