The invention discloses a manufacturing method of a special-shaped component of a gearshift mechanism of an automotive transmission, and the utilization of the method can realize the high-efficient mass production of the special-shaped components of the gearshift mechanisms of the automotive transmissions in the automotive transmissions. The manufacturing method is realized through the following technical scheme: filling alloy powder material with the particle size of not less than 100 meshes, 5-7% by weight of Cu, 2-4% by weight of Ni, 1.5-2.5% by weight of rare earth element La, 1.0% by weight of C, 0.5% by weight of zinc stearate and the balance of Fe powder which are stirred and uniformly mixed into a pre-fabricating die; pressing into a blank of alloy steel at 8-12tf/cm2; sintering the blank at the high temperature of 1090-1150 DEG C, and keeping the temperature for 1.5-3h in reducing gas of nitrogen; cooling down to room temperature, and then placing the formed blank into a sizing die for further extrusion, wherein the outer diameter of the extrusion allowance is 80-160 mu m, and the inner diameter is 60-130 mu m; and finally carrying out local smidgen turning, cutting, trimming and shaping.