The black-backed white-ringed snake can grow up to 1 meter in length.

The black-backed and white-ringed snake is a medium-sized snake, with a slender body, a broad and flat head, a blunt snout, a distinct head and neck distinction, and round pupils. Dorsal scales 17-17-15 rows, smooth or with several central rows of micro-ribbed; ventral scales 193-230, anal scale 1, caudal inferior scales 75-102 pairs.

The back of the black-backed white ringed snake is black or dark brown or black Gray, brown on the back of the head, white on the upper lip; there are many wavy transverse spots from the back of the neck to the tail, which are white at the front, gray-green and light brown at the back with a white border, and become a complete ring at the tail. .