An electric pump comprising: a motor unit including a shaft , a rotor coupled to the shaft , and a stator disposed outside the rotor ; a pump unit including a first rotor coupled to the motor unit and including a first lobe with a plurality of gear teeth and a second rotor disposed outside the first rotor and including a second lobe disposed to be caught by the first lobe ; a first cover disposed between the motor unit and the pump unit and including a first suction port and a first discharge port disposed on one side of the first cover ; and a second cover disposed on a front side of the pump unit , combined with the first cover to accommodate the pump unit and including a second suction port and a second discharge port disposed on a second side on which the pump unit is disposed, characterized in that the first suction port and the second suction port are different in shape, wherein the second suction port includes two recessed regions at ends of the second suction port due to a third protrusion formed inside the suction port , wherein an angle formed by a first line connecting a center of the first rotor and a center of the second rotor and a second line (L2) connecting the center of the first rotor and an end of the third protrusion is inversely proportional to the number of the gear teeth of the first lobe , and wherein the first line (L1) and a third line (L3) connecting the ends of the second suction port in a region adjacent to the third protrusion are parallel to each other, and wherein a distance (d2) between the first line (L1) passing through a center (P1) of the first rotor and a center (P2) of the second rotor (P2) and the third line (L3) connecting the center P1 of the first rotor and an end of the third protrusion is proportional to a distance (e) between the center (P1) of the first rotor and the center (P2) of the second rotor . a motor unit including a shaft , a rotor coupled to the shaft , and a stator disposed outside the rotor ; a pump unit including a first rotor coupled to the motor unit and including a first lobe with a plurality of gear teeth and a second rotor disposed outside the first rotor and including a second lobe disposed to be caught by the first lobe ; a first cover disposed between the motor unit and the pump unit and including a first suction port and a first discharge port disposed on one side of the first cover ; and a second cover disposed on a front side of the pump unit , combined with the first cover to accommodate the pump unit and including a second suction port and a second discharge port disposed on a second side on which the pump unit is disposed, characterized in that the first suction port and the second suction port are different in shape, wherein the second suction port includes two recessed regions at ends of the second suction port due to a third protrusion formed inside the suction port , wherein an angle formed by a first line connecting a center of the first rotor and a center of the second rotor and a second line (L2) connecting the center of the first rotor and an end of the third protrusion is inversely proportional to the number of the gear teeth of the first lobe , and wherein the first line (L1) and a third line (L3) connecting the ends of the second suction port in a region adjacent to the third protrusion are parallel to each other, and wherein a distance (d2) between the first line (L1) passing through a center (P1) of the first rotor and a center (P2) of the second rotor (P2) and the third line (L3) connecting the center P1 of the first rotor and an end of the third protrusion is proportional to a distance (e) between the center (P1) of the first rotor and the center (P2) of the second rotor . <EOS>