The invention discloses a manufacturing method of a special grinding wheel for a polycrystalline diamond cutter. The method comprises the following steps that 1) a binding agent is prepared; 2) a forming material is made; 3) the forming material is placed into a mould; 4) pressurizing and heating are performed; 5) a grinding wheel is loaded into a kiln; 6) sintering is completed; 7) the grinding wheel is taken out of the kiln; 8) rough machining is performed, and the grinding wheel and a base body are combined through resin glue; and 9) finish machining is performed. According to the manufacturing method of the special grinding wheel for the polycrystalline diamond cutter, a prior formula and process are improved, the shape retentivity of the grinding wheel is improved under the state thatthe texture of the grinding wheel is guaranteed to be loose, and accordingly, the machining efficiency and product quality of the diamond cutter are improved.