A motor comprising: a housing; a stator disposed in the housing; a rotor disposed in the stator; and a shaft coupled to the rotor, wherein the stator comprises a stator core, an insulator disposed on the stator core, and a coil disposed on the insulator, wherein the insulator comprises a body on which the coil is disposed, a first guide extending from one side of the body, and a first protrusion and a second protrusion which protrude from a top surface of the first guide, and wherein the first protrusion and the second protrusion are disposed to be spaced apart from each other to form a space in a circumferential direction on the basis of a center of the stator, wherein the body comprises a first body and a second body disposed inside the first body, and wherein the insulator comprises a second guide protruding upward in an axial direction of the motor from the body between the first body and the second body, wherein the first protrusion and the second protrusion comprise areas protruding further than the second guide in a lateral direction of the insulator. wherein the first guide comprises a first inner surface and a first outer surface, and wherein the first protrusion and the second protrusion are disposed between the first inner surface and the first outer surface on the basis of a lateral direction of the first guide, characterized by the fact that each of the first protrusion and the second protrusion comprises a second inner surface (22, 12), a second outer surface (21, 11), and a groove, and wherein the groove is disposed on the second outer surface (21, 11) and disposed along the lateral direction of the first guide. a housing; a stator disposed in the housing; a rotor disposed in the stator; and a shaft coupled to the rotor, wherein the stator comprises a stator core, an insulator disposed on the stator core, and a coil disposed on the insulator, wherein the insulator comprises a body on which the coil is disposed, a first guide extending from one side of the body, and a first protrusion and a second protrusion which protrude from a top surface of the first guide, and wherein the first protrusion and the second protrusion are disposed to be spaced apart from each other to form a space in a circumferential direction on the basis of a center of the stator, wherein the body comprises a first body and a second body disposed inside the first body, and wherein the insulator comprises a second guide protruding upward in an axial direction of the motor from the body between the first body and the second body, wherein the first protrusion and the second protrusion comprise areas protruding further than the second guide in a lateral direction of the insulator. wherein the first guide comprises a first inner surface and a first outer surface, and wherein the first protrusion and the second protrusion are disposed between the first inner surface and the first outer surface on the basis of a lateral direction of the first guide, characterized by the fact that each of the first protrusion and the second protrusion comprises a second inner surface (22, 12), a second outer surface (21, 11), and a groove, and wherein the groove is disposed on the second outer surface (21, 11) and disposed along the lateral direction of the first guide.