The invention discloses a vibration-absorbing device of a needling machine and belongs to the technical field of vibration-absorbing equipment. The vibration-absorbing device of the needling machine comprises a rubber airbag, wherein a reinforcing ring is arranged in the middle of the rubber airbag, the rubber airbag is divided into an upper airbag body and a lower airbag body by the reinforcing ring, the top of the upper airbag body is provided with an upper airbag body cover, and the bottom of the lower airbag body is provided with a lower airbag body cover; and an airbag top cap and an airbag base, wherein the airbag top cap is connected with the upper airbag body cover, top cap surrounding walls are arranged on the peripheral edge of the surface of the side, facing the airbag base, of the airbag top cap, the airbag base is connected with the lower airbag body cover, base surrounding walls which encircle each other and are provided with a base cavity are arranged on the peripheral edge of the surface of the side, facing the airbag top cap, of the airbag base, the base surrounding walls stretch into the top cap cavity and is in sliding fit with the top cap cavity, the upper airbag body is positioned inside the top cap cavity, and the lower airbag body is positioned inside the base cavity. The vibration-absorbing device has the advantages that: the effect loss caused by distortion can be effectively avoided; through the airbag top cap and the airbag base, the vibration-absorbing device can be matched with the needling machine well; the vibration-absorbing device is convenient to install; and the vibration-absorbing device has the excellent noise-reducing and vibration-absorbing effect.