The biggest feature of the vine snake's appearance is its extremely slender and long body. The head of the vine snake is narrow and long, and it is very clearly distinguished from the neck. The snout end of the rattan snake is slightly round and flat, extending beyond the lower collar. The vine snake's eyes are larger, with a horizontal slit in the pupil and a groove in the cheek area. The trunk of the rattan snake is long and slender, and the tail is long and thin.

The back of the vine snake is bright green. The ventral surface of the vine snake is light green, and the lateral edges of the anterior segment of the ventral scales and the lower tail scales are white, showing two longitudinal lines. The upper edge of the snout scale of the vine snake is slightly higher than the internasal scale, and the internasal scale and the forehead scale are longer. The dorsal scales of the vine snake are relatively smooth, with only 9-11 rows of ribs in the center of the base of the tail, the ridge scales are significantly enlarged, and the dorsal scales on both sides are arranged in obvious oblique rows.