An objective of this invention is to provide a blooming controlling method capable of realizing the blooming control by easy and comfortable working, and an electric stimulation providing device for the method.The electric stimulation device 1 contains electrode 101, and a holder 100 for reserving the electrode 101, and capable of holding the position separated from the electrode 101, and a power source 200 connected with the electrode 101 and capable of providing a potential to the electrode 101, and an electrode board 311 for connecting the ground terminal 202 of the power source 200 to a ground. An operator can move the electrode 101 along the branch of broad-leaved fruit tree while the potential is applied to electrode 101, so as to apply a voltage to a bud.本發明之課題在提供一種可藉簡便且舒適之工作而實現花芽的開花控制之開花控制方法以及所使用之電刺激施加裝置。本發明之電刺激施加裝置1具備電極101,以及保持有電極101,同時可把持自電極101分開的位置的握持具100,以及連接在電極101而能對電極101施加電位的電源200,以及將電源200之接地端子202連接到地面用之電極板311。操作者可於電極101上施加有電位之狀態,將電極101沿著闊葉果樹之枝條上移動,而於花芽施加電壓。1a、1b‧‧‧連接電纜100‧‧‧握持具101‧‧‧電極110‧‧‧框架120‧‧‧管200‧‧‧電源201‧‧‧電位施加端子202‧‧‧接地端子203‧‧‧操作部204‧‧‧顯示部205‧‧‧帶狀物300‧‧‧套鞋、工作鞋310、320‧‧‧操作用鞋311‧‧‧電極板313‧‧‧連接器