A laundry treating apparatus comprising: a cabinet provided with an introduction port for introduction of laundry and an opening communicating with an outside of the cabinet, wherein opening is positioned at a lower portion of introduction port; a tub arranged in the cabinet to provide a space for storing washing water, being provided with a tub introduction port communicating with the introduction port; a water supply unit comprising a water supply channel arranged to connect a water supply source to the tub; a detergent storage module positioned at an upper portion of the introduction port, wherein the detergent storage module comprises: a storage body positioned at an upper portion of the introduction port; and a tub supply conduit allowing the storage body to communicate with the tub therethrough, wherein the water supply channel is connected to the storage body; and a detergent supply module positioned at a lower portion of the introduction port and being detachably provided to the cabinet, providing a space for storing a liquid detergent and adapted to provide the store liquid detergent to the detergent storage module, and characterized in that: the detergent supply module is arranged to open and close the opening and comprises: a module panel coupled to the lower installation surface of the frame of the casing; a module door provided to the opening to define a front surface of the cabinet and rotatably coupled to a front surface of the module panel; a container provided on a rear surface of the module door to store the liquid detergent; a detergent pump (211, 213) fixed to a rear surface of the module panel and being adapted to move the detergent in the container to the detergent storage module; a detergent supply conduit (212, 214) to guide the detergent discharged from the detergent pump (211, 213) to the detergent storage module; and an accommodation frame provided to the module door; wherein the container is detachably provided to the accommodation frame, the container discharging the detergent to the accommodation frame. a cabinet provided with an introduction port for introduction of laundry and an opening communicating with an outside of the cabinet, wherein opening is positioned at a lower portion of introduction port; a tub arranged in the cabinet to provide a space for storing washing water, being provided with a tub introduction port communicating with the introduction port; a water supply unit comprising a water supply channel arranged to connect a water supply source to the tub; a detergent storage module positioned at an upper portion of the introduction port, wherein the detergent storage module comprises: a storage body positioned at an upper portion of the introduction port; and a tub supply conduit allowing the storage body to communicate with the tub therethrough, wherein the water supply channel is connected to the storage body; and a storage body positioned at an upper portion of the introduction port; and a tub supply conduit allowing the storage body to communicate with the tub therethrough, wherein the water supply channel is connected to the storage body; and a detergent supply module positioned at a lower portion of the introduction port and being detachably provided to the cabinet, providing a space for storing a liquid detergent and adapted to provide the store liquid detergent to the detergent storage module, and characterized in that: the detergent supply module is arranged to open and close the opening and comprises: a module panel coupled to the lower installation surface of the frame of the casing; a module door provided to the opening to define a front surface of the cabinet and rotatably coupled to a front surface of the module panel; a container provided on a rear surface of the module door to store the liquid detergent; a detergent pump (211, 213) fixed to a rear surface of the module panel and being adapted to move the detergent in the container to the detergent storage module; a detergent supply conduit (212, 214) to guide the detergent discharged from the detergent pump (211, 213) to the detergent storage module; and an accommodation frame provided to the module door; wherein the container is detachably provided to the accommodation frame, the container discharging the detergent to the accommodation frame. a module panel coupled to the lower installation surface of the frame of the casing; a module door provided to the opening to define a front surface of the cabinet and rotatably coupled to a front surface of the module panel; a container provided on a rear surface of the module door to store the liquid detergent; a detergent pump (211, 213) fixed to a rear surface of the module panel and being adapted to move the detergent in the container to the detergent storage module; a detergent supply conduit (212, 214) to guide the detergent discharged from the detergent pump (211, 213) to the detergent storage module; and an accommodation frame provided to the module door; wherein the container is detachably provided to the accommodation frame, the container discharging the detergent to the accommodation frame.