The utility model relates to an electric sucking device.Including host,Negative pressure generating unit,Control unit,Sucking module,Power module and conduit module,The host includes a holding slot arranged inside the host.And the holding groove has a holding space.The negative pressure generating unit is arranged in the host.The control unit is arranged on the host surface.The sucking module contacts the breast and absorbs and collects the milk.The power module provides the negative pressure generating unit.The power of the control unit and the sucking module,The catheter module includes a first catheter with a first end and a second end opposite to each other and a second catheter with a second end and a second end opposite to each other.Among them,The control unit controls the negative pressure generating unit to generate negative pressure between the sucking module and the breast contacted through the second catheter.一種電動吸乳器,包括主機、負壓產生單元、控制單元、吸乳模組、電源模組及導管模組,該主機包括設置在其內部的容置槽,且該容置槽具有容置空間,該負壓產生單元設置在該主機內部,該控制單元設置在該主機表面,該吸乳模組接觸於乳房並汲取與收集乳汁,該電源模組提供該負壓產生單元、該控制單元及該吸乳模組電力,該導管模組包括具有第一端及相對之第二端之第一導管與具有第一端及相對之第二端之第二導管,其中,該控制單元控制該負壓產生單元使其透過該第二導管以於該吸乳模組與所接觸之該乳房之間產生負壓。