The invention discloses a forming method for a multi-element alloy abrasive disc with coarse particles on the surface. The forming method comprises the steps that metal particles and non-metal particles of different granularity are added into an appropriate adhesive according to different proportions to prepare a rack to be adhered to the surface of a casting mold cavity; and then metal liquids are poured at a high temperature, multi-element alloy particles and substrate metal are fused and permeated under the high-temperature action of the metal liquids, so that a hard multi-element alloy layer with relatively high impact resistance and high wear resistance is prepared on the surfaces of grinding teeth. According to the forming method, the multi-element alloy particles are fused and permeated with the substrate metal so that the hard multi-element alloy layer with the relatively high impact resistance and the high wear resistance can be prepared on the surfaces of the grinding teeth,and the surface of the abrasive disc rack is provided with certain coarse grains and micro-pores; and due to the fact that the surface of the abrasive disc rack is provided with the certain coarse grains and the micro-pores, in the pulping process, the friction force of the coarse grains and the micro-pores of the rack on fibers can be increased, and the fibrillation of the fibers and binding force between the fiber can be promoted.