The invention discloses a blended yarn which comprises springback fibers (1) and supporting fibers (2) partially wound on the springback fibers (1), wherein outleakage parts of the springback fibers (1) are reserved among the supporting fibers (2); an area of the outleakage parts accounts for 10-50 percent of the surface area of the yarn. The blended yarn has the advantages of softness, comfortableness, high supporting property and difficulty in deformation.