The invention discloses an environmentally-friendly noise-reducing insertion shaft servo motor, and belongs to the technical field of motors. The environmentally-friendly noise-reducing insertion shaft servo motor can achieve the effect that two noise reducing modes of noise absorption and noise insulation are complementary, a noise absorption layer achieves the noise absorption effect by 'combination of activity and inertia' and a noise insulation layer achieves an excellent noise insulation effect by utilizing the medium density difference to weaken the noise generated during the operation of the servo motor from the inside of the motor. At the same time, noise reduction is performed with the noise as the wave nature, the noise wave energy is absorbed by energy absorbing particles, the noise propagation can be greatly weakened, the noise reduction effect of the servo motor is improved significantly, and the noise reduction effect can reach 90%-95%, which is in line with the new environmental protection concept of the society and reduces noise pollution.