A laundry treating apparatus comprising: a tub configured to store water; a drum provided within the tub to accommodate laundry; flow path units provided in the drum to provide moving paths of water; an agitation unit provided within the drum so as to be rotatable and moving at least a part of water within the drum to the flow path units during rotation; and filter units to filter water moving along the flow path units, wherein each of the filter units includes: a body configured to provide a storage space of foreign substances from water being filtered; an inflow part to introduce water in the flow path unit into the body; a filter provided only on a surface forming an inner circumferential surface among surfaces formed by the body to filter water introduced into the body and then to discharge filtered water to the drum; and discharge parts to discharge water containing foreign substances to the outside of the body during a spin-drying operation in which the drum is rotated to discharge water from laundry to the tub, wherein the body includes a first body detachably attached to the flow path unit and including the inflow part and the discharge parts, and a second body combined with the first body through hinges so as to be rotatable away from each other and forming the inner circumferential surface of the drum, the filter being fixed to the second body, and wherein the first body includes a flange, and the discharge parts are provided at portions of the flange forming the side surfaces of the first body. a tub configured to store water; a drum provided within the tub to accommodate laundry; flow path units provided in the drum to provide moving paths of water; an agitation unit provided within the drum so as to be rotatable and moving at least a part of water within the drum to the flow path units during rotation; and filter units to filter water moving along the flow path units, wherein each of the filter units includes: a body configured to provide a storage space of foreign substances from water being filtered; an inflow part to introduce water in the flow path unit into the body; a filter provided only on a surface forming an inner circumferential surface among surfaces formed by the body to filter water introduced into the body and then to discharge filtered water to the drum; and discharge parts to discharge water containing foreign substances to the outside of the body during a spin-drying operation in which the drum is rotated to discharge water from laundry to the tub, wherein the body includes a first body detachably attached to the flow path unit and including the inflow part and the discharge parts, and a second body combined with the first body through hinges so as to be rotatable away from each other and forming the inner circumferential surface of the drum, the filter being fixed to the second body, and wherein the first body includes a flange, and the discharge parts are provided at portions of the flange forming the side surfaces of the first body. a body configured to provide a storage space of foreign substances from water being filtered; an inflow part to introduce water in the flow path unit into the body; a filter provided only on a surface forming an inner circumferential surface among surfaces formed by the body to filter water introduced into the body and then to discharge filtered water to the drum; and discharge parts to discharge water containing foreign substances to the outside of the body during a spin-drying operation in which the drum is rotated to discharge water from laundry to the tub, wherein the body includes a first body detachably attached to the flow path unit and including the inflow part and the discharge parts, and a second body combined with the first body through hinges so as to be rotatable away from each other and forming the inner circumferential surface of the drum, the filter being fixed to the second body, and wherein the first body includes a flange, and the discharge parts are provided at portions of the flange forming the side surfaces of the first body.