Births generally occur from March to August. Found alone or in pairs, the Reeve's muntjac is chiefly nocturnal, but may be active in the morning. It is hunted for its meat and skin.
Females have small bony knots and tufts of hair where the antlers occur in males.
Males and females have elongated upper canine teeth, which curve outward from the lips, forming fangs. A small slit, or opening, is located just in front of the muntjac's eyes. This is a scent gland that secretes a strong smelling fluid. This is rubbed against plants and other objects to mark the muntjac's territory. The brown or tan coat blends in well with the shadows of the forest floor, effectively hiding the muntjac.