The Chifeng Jin Snake has a thick and long round body, with a total length of about 1.5 meters and a maximum length of 2 meters. The weight is about 1 kg, and the heaviest is 1.7 kg.

The back of the Chifeng Jin Snake is brown with gray or light brown, and the front part has no markings or There are very inconspicuous dark white horizontal spots; there are black horizontal spots from the middle to the back, and some spots are irregularly bifurcated to both sides, each spot occupies about 2-4 scale rows; the spots on the back and tail of the body Obvious; ventral surface light yellow or pale yellow with black spots.