The invention discloses a method for remediating cadmium-contaminated soil by using Sweden energy willow No.2, which comprises: cutting one-year-old twigs with a diameter between 1.5 to 2.0 centimeters of Sweden energy willow Salix dascladus by 18 to 20 centimeters, and storing the twigs cut off as cuttingwood in a sand bed; and taking the cuttingwood out before sticking, immersing the cuttingwood in solution of GGR rooting powder, and sticking at a 0.5 to 0.75 meter plant distance and 0.5 to 1 meter row distance, wherein the cuttingwood is inserted into the cadmium-contaminated soil with 3 to 5 centimeters exposed from the ground in sticking, and 3 to 5 years is a growth period. In a cadmium-stressed environment, the Sweden energy willow No.2 growth vigorously, the biomass liveweight can reach 7.4 to 10.9t/hm<2>/year, the soil purification rate can reach 0.3 to 1.2 percent/year, and the annual purification rate is 4 to 7 times that of hyper-herbaceous accumulators.