The invention discloses a hygroscopic warm cloud catalyst seeding pull rope, including a first end and a second end. The first end and the second end are connected by a rope body material, wherein, the first end is provided with a hanging part, the second end is provided with a hole, the breaking tenacity of the seeding pull rope is more than 900 kilograms force and the length of the seeding pullrope is more than 5 meters. The invention provides the hygroscopic warm cloud catalyst seeding pull rope with the hanging part, can hang the first end of the seeding pull rope on a fixed part of a plane, after an enclosed and packed paper box filled with catalyst powder is thrown out of the plane, the seeding pull rope is straightened and unfolded, and then the paper box is opened and the sowing is carried out; as the breaking tenacity of the seeding pull rope is more than 900 kilograms force, the seeding pull rope can be ensured not to be broken when in the processes of straightening and unfolding; and as the length of the seeding pull rope is more than 5 meters, one end of the seeding pull rope can be led to separate from the turbulent region of the plane after being straightened.