A laundry treating apparatus comprising: a cabinet ; a drawer including a drawer body extendable from the cabinet , a drawer cover for forming a top face of the drawer body , a first detergent flow channel defined in the drawer cover to define a storage space for detergent or a flow path for the detergent, and a first detergent supply hole defined to penetrate the drawer cover to inject the detergent into the first detergent flow channel ; a tub including a tub body disposed inside the drawer and storing water therein, a tub cover for forming a top face of the tub body , and an exhaust hole penetrating the tub cover to communicate an interior of the tub body with the outside to discharge air inside the tub body ; a drum rotatably disposed in the tub , wherein the drum accommodates laundry; a discharge flow channel for connecting the first detergent flow channel with the tub ; a dispenser including a flow channel body fixed to the drawer , a first water supply flow channel defined in the flow channel body , an exhaust flow channel defined in the flow channel body to provide a flow path for air and separated from the first water supply flow channel , a flow channel cover for forming a top face of the flow channel body , and a cover through-hole connected to the exhaust flow channel through the flow channel cover ; a first connection pipe for connecting the first water supply flow channel to a first water source; a first flow channel water supply pipe for supplying water inside the first water supply flow channel to the first detergent flow channel ; and a tub exhaust pipe for connecting the exhaust flow channel with the exhaust hole . a cabinet ; a drawer including a drawer body extendable from the cabinet , a drawer cover for forming a top face of the drawer body , a first detergent flow channel defined in the drawer cover to define a storage space for detergent or a flow path for the detergent, and a first detergent supply hole defined to penetrate the drawer cover to inject the detergent into the first detergent flow channel ; a tub including a tub body disposed inside the drawer and storing water therein, a tub cover for forming a top face of the tub body , and an exhaust hole penetrating the tub cover to communicate an interior of the tub body with the outside to discharge air inside the tub body ; a drum rotatably disposed in the tub , wherein the drum accommodates laundry; a discharge flow channel for connecting the first detergent flow channel with the tub ; a dispenser including a flow channel body fixed to the drawer , a first water supply flow channel defined in the flow channel body , an exhaust flow channel defined in the flow channel body to provide a flow path for air and separated from the first water supply flow channel , a flow channel cover for forming a top face of the flow channel body , and a cover through-hole connected to the exhaust flow channel through the flow channel cover ; a first connection pipe for connecting the first water supply flow channel to a first water source; a first flow channel water supply pipe for supplying water inside the first water supply flow channel to the first detergent flow channel ; and a tub exhaust pipe for connecting the exhaust flow channel with the exhaust hole . <EOS>