The utility model relates to an opening control structure of an electric scissor blade, which is used for positioning in a shell. The control structure has an electric driving component, one end of the electric driving component has a driving member, a connecting member is connected with the driving member in a relatively movable way, the connecting member is connected with a first blade, and a first induction unit is arranged on the connecting member, while the plurality of second induction units are connected with a control unit The control unit and the control unit are electrically connected with the electric drive assembly, and the plurality of second induction units are correspondingly arranged with the first induction unit.Thus, when the connecting part moves axially relative to the driving part, the opening size formed by the first blade and the second blade can be controlled through the induction of the first sensing unit and the plurality of the second sensing units to cut branches with different diameters.一種電動剪刀刀片開口控制結構，係供定位於一殼體內，該控制結構具有一電力驅動組件，電力驅動組件之一端具有一傳動件，一連動件以可相對移動之方式連結傳動件，連動件連結一第一刀片，且在連動件上設有一第一感應單元，而複數個第二感應單元連接一控制單元，控制單元電連接電力驅動組件，複數個第二感應單元與第一感應單元相對應設置。藉此，經由使用者之切換，即可在連動件相對於傳動件軸向移動時，經由第一感應單元與複數個第二感應單元之感應，控制第一刀片與第二刀片所形成之開口大小，以剪裁直徑大小不同的樹枝。
