PROBLEM TO BE SOLVED: To provide a chemical solution spraying device that can properly control a timing of start of a spraying operation and/or a spraying amount at start of a spraying operation.SOLUTION: This chemical solution spraying device is provided with a spraying unit (20) for spraying a chemical solution, and a control unit (60) for controlling a timing of start of a spraying operation of the spraying unit (20) and/or a spraying amount at start of a spraying operation of the spraying unit (20) on the basis of a state of a target space (S).SELECTED DRAWING: Figure 3COPYRIGHT: (C)2020,JPO&INPIT【課題】噴霧動作の開始タイミング及び噴霧動作開始時の噴霧量の少なくとも一方を最適に制御できる薬液噴霧装置を提供する。【解決手段】薬液噴霧装置は、薬液を噴霧する噴霧部（20）と、対象空間（S）の状況に基づいて噴霧部（20）の噴霧動作の開始のタイミング、及び噴霧部（20）の噴霧動作の開始時の噴霧量の少なくとも一方を制御する制御部（60）とを備えている。【選択図】図３
