A kind of direct-driving electric motor mower,The grass trimmer system be provided with driving device,Cutter device and operating device,The driving device system has outward rotation type electric motor,It is connected with connector above outward rotation type electric motor,Outward rotation type electric motor is provided with stator,It is connected with pedestal above stator,And its outer sheath is equipped with rotor,It is connected with lower cover below rotor,And shaft is provided in pedestal,Shaft end extends lower cover,The operating device system connects above the connector of what driving device,And there is the electric connector and switch for being for electrically connecting to what outward rotation type electric motor,And cutter device system connection what shaft lower ends and lower cover,When operating device connects power supply unit and drives outward rotation type electric motor,The rotor of outward rotation type electric motor drives lower cover and shaft to pivot,Shaft and lower cover frenulum move cutter device and rotate actuation,Because outward rotation type electric motor provides bigger torque and torsion,In order to allowing grass trimmer more efficiently to carry out cutting operation.一種直驅式電動割草機，該割草機係設置有驅動裝置、切割裝置以及操作裝置，該驅動裝置係具有外轉式電動馬達，外轉式電動馬達上方連接有連接件，外轉式電動馬達設置有定子，定子上方連接有基座，及其外側套設有轉子，轉子下方連接有下蓋，而基座內設置有轉軸，轉軸末端延伸出下蓋，該操作裝置係連接於驅動裝置之連接件上方，及具有用以電性連接於外轉式電動馬達之電連接器及開關，而切割裝置係連接於轉軸下方末端及下蓋，當操作裝置連接電源供應器並驅動外轉式電動馬達時，外轉式電動馬達之轉子帶動下蓋與轉軸樞轉，轉軸及下蓋係帶動切割裝置旋轉作動，因外轉式電動馬達提供更大之轉距及扭力，俾讓割草機更有效率進行割草作業。
