A drain pump, in particular for a home appliance, comprising: an impeller; a motor having a rotary shaft coupled to the impeller for providing rotational force to the impeller; a motor housing having a motor accommodating space for accommodating the motor; and a connector being electrically connected to the motor and having a contact surface exposed to an outside of the motor housing to be connected to an external power source, wherein the motor housing includes a first housing and a second housing coupled to the first housing, so that a space for accommodating the motor is formed, the drain pump further comprises: a connector cover portion provided on the motor housing to cover the connector, wherein a first axial side surface of the connector cover portion is open to expose the contact surface of the connector, the first axial side surface extending in a plane perpendicular to an axial direction of the rotary shaft, wherein the first housing includes a connector mounting groove formed on a sidewall surface of the first housing through which the connector is inserted into the connector cover portion, wherein the connector cover portion extends integrally from an outer circumferential surface of the sidewall surface of the first housing, namely, a circumferential surface of the connector mounting groove and protrudes outward from the outer circumferential surface so as to accommodate the connector mounting groove, and wherein the connector cover portion protrudes from an edge of the first housing, and the second housing is coupled to the first housing so that a portion of the connector cover portion overlaps with the second housing. an impeller; a motor having a rotary shaft coupled to the impeller for providing rotational force to the impeller; a motor housing having a motor accommodating space for accommodating the motor; and a connector being electrically connected to the motor and having a contact surface exposed to an outside of the motor housing to be connected to an external power source, wherein the motor housing includes a first housing and a second housing coupled to the first housing, so that a space for accommodating the motor is formed, the drain pump further comprises: a connector cover portion provided on the motor housing to cover the connector, wherein a first axial side surface of the connector cover portion is open to expose the contact surface of the connector, the first axial side surface extending in a plane perpendicular to an axial direction of the rotary shaft, wherein the first housing includes a connector mounting groove formed on a sidewall surface of the first housing through which the connector is inserted into the connector cover portion, wherein the connector cover portion extends integrally from an outer circumferential surface of the sidewall surface of the first housing, namely, a circumferential surface of the connector mounting groove and protrudes outward from the outer circumferential surface so as to accommodate the connector mounting groove, and wherein the connector cover portion protrudes from an edge of the first housing, and the second housing is coupled to the first housing so that a portion of the connector cover portion overlaps with the second housing. a connector cover portion provided on the motor housing to cover the connector, wherein a first axial side surface of the connector cover portion is open to expose the contact surface of the connector, the first axial side surface extending in a plane perpendicular to an axial direction of the rotary shaft, wherein the first housing includes a connector mounting groove formed on a sidewall surface of the first housing through which the connector is inserted into the connector cover portion, wherein the connector cover portion extends integrally from an outer circumferential surface of the sidewall surface of the first housing, namely, a circumferential surface of the connector mounting groove and protrudes outward from the outer circumferential surface so as to accommodate the connector mounting groove, and wherein the connector cover portion protrudes from an edge of the first housing, and the second housing is coupled to the first housing so that a portion of the connector cover portion overlaps with the second housing.