PROBLEM TO BE SOLVED: To provide a termite prevention tool for a piping material penetration part, installable, regardless of time before or after constructing a foundation skeleton.SOLUTION: The termite prevention tool 3 is provided for preventing intrusion of a termite from a penetration part for penetrating a piping material 2 through the concrete foundation skeleton 1, and includes a termite prevention component. The termite prevention tool 3 comprises a cylinder part body 3a fitted to the piping material 2 and a flange part 3b extended outside from an end part of its cylinder part body 3a. Then, the termite prevention tool 3 is fitted and installed in the piping material 2 before constructing the foundation skeleton 1, and can be installed by selecting a pre-foundation construction fitting-installing form of being buried and installed in its foundation skeleton 1 by constructing the foundation skeleton 1 and a post-foundation construction fitting-installing form of being fitted and installed in the piping material 2 by allowing an end surface 3d on the flange part 3b side to abut on a surface of the foundation skeleton 1 after constructing the foundation skeleton 1.
