The Mangshan Branded Ironhead Snake was first discovered in the territory of Mangshan Mountain in Chenzhou, hence the name Mangshan Branded Ironhead Snake. The toxicity of the Mangshan Branded Ironhead Snake is somewhat greater than that of the Five-Pace Snake .

While it is an exaggeration to say that a snake bite can kill a person in five steps, the Mangshan branded iron head snake can kill a person in less than ten minutes if they don't take timely measures after being bitten by the snake. Due to the huge scientific value of the Mangshan iron head snake, coupled with the scarcity of the number (about 500 wild survival), in the black market, its price has been speculated to 100 million yuan a. The snake is a very rare species, but it is also a very rare species.

The snakes are extremely lazy. The vast majority of the time they will crouch on the ground and do not move at all, even if they find someone coming, but only unhurriedly slowly crawling, its speed is slower than a person walking. Only when they are frightened do they run away.

The Mangshan branded iron head snake first came into human view in 1984. Chen Yuanhui introduced a worker in the Mangshan forest area who was bitten by a venomous snake in that year, and it took him more than a month to remove the snake's venom from his body. After questioning the patient, he felt that it was a venomous snake that had not yet been recognized by humans.

He thought of the totem "Little Green Dragon" worshipped by the Yao people in Mangshan, and from then on, he began to go to the mountains to look for this mysterious poisonous snake.

In September 1989, an employee of the Mangshan Forestry Bureau found two adult snakes and a nest of strange snakes in a protected area, which all had white tails. The discovery was the "little green dragon" that he had been looking for, and was later named the Mangshan branded iron head snake.