PROBLEM TO BE SOLVED: To provide a powder spray controller, a powder sprayer and a powder medicine sprayer, capable of efficiently spraying powder while inhibiting powder from being discharged unexpectedly in the case of supplying with a volumetric change of a storing part of a powder supply member storing powder or the like.SOLUTION: A powder spray controller 40A is applied to a powder supply member 10 including a storing part 11 and a powder transfer pipe 15 for causing a flow of powder from the storing part 11 changed in volume. The controller includes: a transfer pipe control member 20 for moving the powder transfer pipe 15 and a valve member 50 opened and closed by the powder transfer pipe 15. The transfer pipe control member 20 moves the powder transfer pipe 15 to open and close the valve member 50 and also form a restoring air passage.COPYRIGHT: (C)2014,JPO&INPIT【課題】粉末等を貯留した粉末供給部材の貯留部を容積変化させて供給する場合に、粉末が不意に排出されるのを抑制しつつ効率的に散布可能な粉末散布制御器、粉末散布装置及び粉末薬剤散布装置を提供すること。【解決手段】貯留部11と、容積変化した貯留部11から粉末を流動させる粉末移送管15とを有する粉末供給部材10に適用される粉末散布制御器40Aであって、前記粉末移送管15を移動させる移送管制御部材20と、前記粉末移送管15により開閉可能とされ弁部材50とを備え、前記移送管制御部材20は、前記粉末移送管15を移動させて前記弁部材50を開閉するとともに復元空気路を形成することを特徴とする。【選択図】図9