The invention relates to a laparoscope lens antifogging method, includes a process of heating a laparoscope lens body, repeatedly rubs an outer surface of the laparoscope lens body with a thermochromic rubber pad, heats the laparoscope lens body through utilizing heat generated through friction, on the basis of the
heat transfer principle, further heats the lens of a laparoscope and achieves the antifogging effect of the laparoscope lens. The invention further provides a laparoscope lens antifogging device, the laparoscope lens antifogging device comprises the laparoscope, wherein the laparoscope comprises the lens, a body and a
handle, the lens is arranged at a front end of the body, the body and the
handle are connected, an outer side of the body is provided with a rubber pad, the rubberpad is distributed with thermochromic additive, one side of the rubber pad is provided with an arc-shaped groove, and the arc-shaped groove is matched with the outer side of the body. The laparoscopelens antifogging method and device are advantaged in that the frictional
heat generation principle is utilized, the laparoscope lens is heated to the temperature to prevent
water vapor in the
abdominal cavity from condensing due to coldness before the lens, and thereby the antifogging effect of the lens is achieved, and the laparoscope lens antifogging method and device are simple, fast, economical and practical.