To provide an improved tool for controlling humidity and repelling termites, which is disposed under the floor of a wooden house to prevent the wood-damaging insect pests such as termites and the generation of wood-rotting fungi or the like.

This tool for controlling both humidity and termites is characterized by superposing water-proof and moisture-permeable sheet materials (112) on the upper and lower sides of a plastic sheet (111), respectively, fusing the peripheral portions (113) of the superposed sheet materials (112), (112) and the plastic sheet (111) to form the bag (11) having the central partition (12) in the horizontal direction, filling the upper bag portion (11-1) on the plastic sheet (111) with a humidity-controlling material (14) and further filling the lower bag portion (11-2) under the plastic sheet (111) with a humidity-controlling carrier (13) impregnated with a carrying agent (131) such as a termite repellent or a terminate-controlling agent.