The invention relates to a manufacturing method for a radiation-oriented magnetic ring, belonging to the technical field of the rare earth permanent magnet material. Aiming at the disadvantage that the radiation-oriented magnetic ring prepared by the prior art is easy to be broken up, the invention radiates, orients and molds anisotropic nanocrystal magnetic particles with powder particle size of 1 to 100 micron under a magnetic field, the anisotropic nanocrystal magnetic particles are pressurized and sintered with discharge plasmas or a direct current, the temperature is 500 to 960 DEG C, the time is 0.5 to 10.0 minutes, the pressure is 30 to 200 MPa, after the sintering, the temperature is rapidly reduced; magnetic powder is single alloy or double alloy (at least one kind of magnetic powder is anisotropic nanocrystal), the alloy is chosen from R1T5, R1T7, R2T17 R2T14M1, AlNiCo, FeCrCo, permanent magnetic ferrite and soft magnetic alloy with high saturation magnetization. The manufacturing method of the radiation-oriented magnetic ring is also suitable to prepare micron crystal R1T5, R2T17, R2T14M1, AlNiCo, FeCrCo radiation-oriented magnetic rings, the powder particle size is 1 to 20 micron, the magnetic ring is at least required to be thermally treated for one time. The finished product rate of the magnetic ring is higher.