The white-browed pit viper is highly venomous, slow-moving, and has 2 to 4 frontal fangs, 414+64mm for males and 344+48mm for females.

white-browed pit viper The back is light brown to reddish brown, with two rows of dark brown round spots, staggered or juxtaposed on the left and right, the central spot is light in color, the outer side is often open in the shape of a horse, and some specimens have a reddish-brown ridge; there is a colored spot behind the eyes Eyebrows, the upper edge of which is inlaid with a yellow-white edge; the rear of the tail is yellow-white, but the tip of the tail is often black.