The utility model relates to an improved structure of an electric lawn mower, comprising a motor, a cutting device and an operating device. The motor comprises a motor casing, a motor bottom case, a stator, a rotor and a rotating shaft. The motor casing has an upper opening and an opposite lower opening, and the motor bottom case is from the bottom to the bottom The top of the motor bottom case is provided with a base in the motor casing, the stator sleeve is placed on the base, the rotor is sleeved from the top to the outer circumference of the stator, the top end of the rotating shaft is fixed on the top of the rotor, and the bottom end of the rotating shaft has an extension. The connecting portion of the base is sleeved and fixed to the connecting portion of the rotating shaft of the motor; the operating device has a rod body, and the motor controller and the grip are arranged on the rod body, and the bottom end of the rod body is connected and fixed to the motor The outer side of the outer casing; thus the electric lawn mower utilizes the motor casing to effectively protect the stator and rotor of the motor to improve the safety of operation, and the motor casing is directly coupled to the shaft of the operating device to form a firm structural strength and is more durable.一種電動割草機結構改良,包括有馬達、切割裝置以及操作裝置,馬達包括有馬達外殼、馬達底殼、定子、轉子以及轉軸,馬達外殼具有上開口與相對下開口,馬達底殼由下往上設置於下開口,馬達底殼頂部在馬達外殼內設置有基座,定子套置於基座上,轉子由上往下套設於定子外周,轉軸頂端固定於轉子頂部,轉軸底端具有伸出於基座之連接段;切割裝置係套置固定於馬達之轉軸之連接段;操作裝置係具有桿體,在桿體上設有馬達控制器與握把,桿體底端連接固定於馬達外殼外側;從而電動割草機利用馬達外殼有效保護馬達之定子與轉子,以提高操作使用之安全性,並且馬達外殼直接連結於操作裝置之桿體,以形成牢靠結構強度,更經久耐用。