The utility model discloses a high drop prevention rope ladder which comprises a guide pulley, a high drop prevention mechanism, a rope ladder main body, an operating backrest and a rope ladder mounting point, wherein the guide pulley is arranged at the first end of the rope ladder main body; the rope ladder mounting point is formed on the second end of the rope ladder main body; the operating backrest is fixed at a position, which is positioned between the first end and the second end, on the rope ladder main body; the high drop prevention mechanism comprises a protection rope and rope clips; the rope clips are arranged on two sides of the rope ladder main body; the protection rope penetrates through the two rope clips; and after the body of an operator is separated from the rope ladder main body suddenly, when the tensile speed of the protection rope is extremely high, the protection rope is rapidly locked by the rope clips, so that the operator is prevented from continuously dropping. The high drop prevention rope ladder disclosed by the utility model has the advantages that the protection rope can be rapidly locked when the operator drops, so that the operator is prevented from dropping, the personal safety of the operator is protected, and the like.