The invention discloses a disinfecting and damping puncture supporting device for a laparoscopic operation. The device comprises a lead-in pipe, a base, a liquid suction nozzle, a damper, an outer sleeve and sterilizers, wherein supporting legs are fixed at the bottom of the base, and the outer sleeve is arranged on the upper portion of the base; reinforcing plates are welded at the two ends of the outer sleeve, and the reinforcing plates are fixedly connected with the sterilizers through screws; each sterilizer is composed of a sterilizer shell and a disinfectant bottle, the bottoms of the sterilizers are fixed to the base through supporting rods; a puncture rod penetrates through the outer sleeve and the interiors of the sterilizers at the two ends; the right side of the sterilizer at the right end of the outer sleeve is connected with the lead-in pipe, the left side of the sterilizer at the left end of the outer sleeve is connected with the damper, redundant disinfectant is sucked by the liquid suction nozzle, and the disinfection effect is good; a good damping effect is achieved, the vibration of the input end of the puncture rod is reduced, the puncture effect is improved, andthe pain of a patient is reduced.