Problem to be solved: to provide a structure for preventing a small animal such as a mouse free from wandering freely or by preventing a free animal from entering into a space to be protected.Solution: the structure of an anti wound pipe introduction structure includes a first elastic member 2 having a plate shape lower than that of a piping, a second elastic member 3 formed on one surface of the first elastic member 2 and having a plate-like second elastic member 3 having a hardness higher than that of the first elastic member 2, and the first elastic member 2 is opposed to one side of the first elastic member A notch 20 for passing the pipe is formed. The cutout 20 is arranged radially at a uniform interval around the perforation portion 21 for passing the pipe.From the elastic member of aluminum, the elastic member such as silicon as the buffer material has a large size, so that aluminum is not directly brought into contact with the pipe.Diagram【課題】ネズミ等の小動物を自由に徘徊させず、または防衛するべき空間に自由に侵入させないことができる防鼠配管導入構造を提供する。【解決手段】防鼠配管導入構造は、配管の被覆よりも硬度が低い板状の第1の弾性部材2と、第1の弾性部材2の一方の面に形成され、第1の弾性部材2よりも硬度が高い板状の第2の弾性部材3とを備え、第1の弾性部材2には、他方の面から一方の面に対して配管を通過させる切り込み20が形成されている。切り込み20は、配管を通過させる穿孔部21を中心として放射状に等間隔で複数個配置されている。アルミニウムの弾性部材より、緩衝材となるシリコン等の弾性部材が大きいサイズになって、アルミニウムを直接配管に接触させない構造である。【選択図】図4