PROBLEM TO BE SOLVED: To provide a method for spraying a termite proofing agent that can be easily and efficiently performed outside the room (outside the house) without having to enter the room (the house).SOLUTION: A method for spraying a termite proofing agent in the underfloor of the house includes: a carrying-in step for carrying a spraying device 11 including a nozzle for spraying a termite proofing agent into an under floor space from an opening formed in an erected part of base concrete of the house and a spraying step for spraying the termite proofing agent from the nozzle.SELECTED DRAWING: Figure 5COPYRIGHT: (C)2018,JPO&INPIT【課題】室内(屋内)に入ることなく、室外(屋外)で容易に、且つ、効率的に行うことができる防蟻剤散布方法を提供する。【解決手段】家屋の床下における防蟻剤散布方法であって、防蟻剤を散布するノズルを含む散布装置11を家屋の基礎コンクリートの立設部に形成されている開口部から床下空間へ搬入する搬入ステップと、前記ノズルから防蟻剤を散布する散布ステップと、を含む。【選択図】図5